It covers more than 50 nursing specialties and includes quick lessons, evidence-based care sheets, CEU modules and research instruments. The database combinations with the highest recall did not reduce the total number of results by large margins. sharing sensitive information, make sure youre on a federal Disclaimer. Of all reviews in which we searched CINAHL and PsycINFO, respectively, for 6 and 9% of the reviews, unique references were found. There are disadvantages to using multiple databases. This can be offset, as noted above, by going to the EBSCOhost (Health) package of databases. The database itself is unfiltered, but includes many filtered items like systematic reviews. To learn about our use of cookies and how you can manage your cookie settings, please see our Cookie Policy. Published reviews were included if the search strategies and results had been documented at the time of the last update and if, at minimum, the databases Embase, MEDLINE, Cochrane CENTRAL, Web of Science, and Google Scholar had been used in the review. (DOCX 19kb). 2011;91:1907. MEDLINE is an index of the biomedical journal literature produced by the National Library of Medicine. Privacy We use cookies to improve your website experience. One explanation for our finding may be that if the research question is very specific, the topic of research might not always be mentioned in the title and/or abstract. 3 for the legend of the plots in Figs. The Cochrane Handbook recommends searching MEDLINE, Cochrane CENTRAL, and Embase for systematic reviews of RCTs. ``6C~8 '* "r#=e ax A+ Rathbone J, Carter M, Hoffmann T, Glasziou P. Syst Rev. This implies that 17% of the reviews in the PubMed sample would have achieved an acceptable recall of 95%. how to send secure email attachments in gmail. Syst Rev. In Excel, we calculated the performance of each individual database and various combinations. Researchers planning a systematic review generally perform one review, and they need to estimate the probability that they may miss relevant articles in their search. An official website of the United States government. Perfect for researchers at all levels, this comprehensive consumer health resource provides authoritative information on the full range of health-related issues, from current disease and disorder information to in-depth coverage of alternative medical practices. This research goes beyond retrospectively assessed coverage to investigate real search performance in databases. Article In addition to journal articles, CINAHL includes books, book chapters, dissertations, and computer programs. Using similar calculations, also shown in Table5, we estimated the probability that 100% of relevant references were retrieved is 23%. It is laborious for searchers to translate a search strategy into multiple interfaces and search syntaxes, as field codes and proximity operators differ between interfaces. Scroll down the page below the search boxes to locate these filters or limiters. Exploring the 'Patient Experience' of Individuals with Limited English Proficiency: A Scoping Review. Unable to load your collection due to an error, Unable to load your delegates due to an error. Future research should continue to investigate recall of actual searches beyond coverage of databases and should consider focusing on the most optimal database combinations, not on single databases. The three databases were searched for citations on topics selected by three nurse researchers and the results were compared. Based on the number of results per database both before and after deduplication as recorded at the time of searching, we calculated the ratio between the total number of results and the number of results for each database and combination. 3 0 obj del rio rams . This filter can be usedfind articles that are clinically-sound. Size For CINAHL and PsycINFO, in one case each, unique relevant references were found. In short, the method consists of an efficient way to combine thesaurus terms and title/abstract terms into a single line search strategy. Bramer WM, Rethlefsen ML, Mast F, Kleijnen J. PubMed :p#("-!r>5"@5Ip^P|~1zsqE- @QK An overview of the broad topical categories covered in these reviews is given in Table2. PubMed Subirana M, Sol I, Garcia JM, Gich I, Urrtia G. J Clin Epidemiol. <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/Annots[ 9 0 R 10 0 R] /MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> The combination of Embase, MEDLINE, Web of Science Core Collection, and Google Scholar performed best, achieving an overall recall of 98.3 and 100% recall in 72% of systematic reviews. The collection contains thousands of proprietary, copyrighted images depicting normal anatomy, physiology, embryology, and histology, as well as the web's largest repository of reference illustrations depicting surgery, trauma, pathology, diseases and conditions. For this study, we searched to achieve as high a recall as possible, though our search strategies, like any other search strategy, still missed some relevant references because relevant terms had not been used in the search. If this resulted in extraneous results, the search was subsequently limited using a distinct part of the title or a second author name. For the search of nursing care literature on a medical condition, it was helpful to search both CINAHL and MEDLINE. This limiter box allows you to select specific article types. We analyzed whether the added value of Web of Science and Google Scholar was dependent of the domain of the review. The aim of our research is to determine the combination of databases needed for systematic review searches to provide efficient results (i.e., to minimize the burden for the investigators without reducing the validity of the research by missing relevant references). Rice DB, Kloda LA, Levis B, Qi B, Kingsland E, Thombs BD. According to our data, PubMeds as supplied by publisher subset retrieved 12 unique included references, and it was the most important addition in terms of relevant references to the four major databases. The recall of the database combinations was calculated over all included references retrieved by any database. Lorenzetti DL, Topfer L-A, Dennett L, Clement F. Value of databases other than MEDLINE for rapid health technology assessments. For a sample of 200 recently published systematic reviews, we calculated how many had used enough databases to ensure 95% recall. Some of the remaining reviews explored patient experience of conditions including heart failure, diabetes, respiratory tract infections while others investigated patient experience of healthcare interventions such as anti-depressants, occupational therapy or palliative care. Nursing: Indexes & Databases. J Clin Epidemiol. We copied from the MeSH tree the top MeSH term directly below the disease category or, in to case of the intervention, directly below the therapeutics MeSH term. [17] found the added value of other databases only for newer, non-indexed references. For reviews where RCTs are the desired study design, Cochrane CENTRAL may be similarly useful. We determined the databases that contributed most to the reviews by the number of unique references retrieved by each database used in the reviews. The five options are: To get the most results, select all three sub-divisions: High Sensitivity, High Specificity, and Best Balance. Almost all reviews (97%) reported a search in MEDLINE. Bramer, W.M., Rethlefsen, M.L., Kleijnen, J. et al. Most of the previous studies did not include these two databases in their research. official website and that any information you provide is encrypted 9v[-[TkBaly.Ja%"uu'Nd&nNSevS}VXcS63#qN 2015;10:5068. 2018. Beyer FR, Wright K. Can we prioritise which databases to search? For all but one domain, the traditional combination of Embase, MEDLINE, and Cochrane CENTRAL did not retrieve enough included references. 1 0 obj Of these, 84 references (4.6%) had not been retrieved by our database searches and were not included in our analysis, leaving in total 1746 references. This happens, particularly with lesser-used medications and treatments. Differences in thesaurus terms between databases add another significant burden for translation. In 23 reviews included in this research, Scopus was searched. In our analyses, we combined the results from MEDLINE in Ovid and PubMed (the subset as supplied by publisher) into one database labeled MEDLINE. These could be retrieved by searching PubMed with the subset as supplied by publisher. WB designed the searches used in this study and gathered the data. By closing this message, you are consenting to our use of cookies. 1990;23:58393. endobj 8600 Rockville Pike author reply e140. Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine. Google Scholar, Zheng MH, Zhang X, Ye Q, Chen YP. Cited by lists all citing articles based on Crossref citations.Articles with the Crossref icon will open in a new tab. The four databases that had retrieved the most unique references (Embase, MEDLINE, Web of Science, and Google Scholar) were investigated individually and in all possible combinations (see Table4). Bethesda, MD 20894, Web Policies We've already shown how to use this limiter for systematic reviews and case studies; other useful publication types for evidence-based practice include Clinical Trial and Meta Analysis. Unique references were included articles that had been found by only one database search. We calculated the recall for individual databases and databases in all possible combination for all reviews included in the research. The comparative recall of Google Scholar versus PubMed in identical searches for biomedical systematic reviews: a review of searches used in systematic reviews. 2019 Aug;21(4):853-878. doi: 10.1007/s10903-018-0816-4. J Med Libr Assoc. We identified all included references that were uniquely identified by a single database. 0_!g3SR}W/galG/g)Wz37;467WfW_E\wf_Q"#H3)j\]'gr[ ~dFq @Xj7yfC pOYAnaKruN" VI$wkD F\+ Fd7[)g `xBI@Oj Starting with the most recent articles, we determined the databases searched either from the abstract or from the full text until we had data for 200 reviews. Other specialized databases, such as CINAHL or PsycINFO, add unique references to some reviews where the topic of the review is related to the focus of the database. Note: Putting quotation marks around phrases tells the database to search for these words as a phrase and not as individual words. Although we searched PubMed as supplied by publisher separately from MEDLINE in Ovid, we combined the included references of these databases into one measurement in our analysis. Imagine you are a patient with cancer and your doctor can't order your pain medication. In the top bar, we present the results of the complete database searches relative to the total number of included references. The higher recall from adding extra databases came at a cost in number needed to read (NNR). Those databases that contributed the most unique included references were then considered candidate databases to determine the most optimal combination of databases in the further analyses. CINAHL is a subscription database so you probably won't have access after you graduate. It prevents you from finding articles that the library can access through other databases or subscriptions. Disadvantages of using CINAHL There really aren't any, except that it's just a single database, and you might miss material that is available elsewhere. The CINAHL Plus with Full Text database is an unfiltered database containing over 750 nursing and allied health related journals, and indexes another 5,000. The median % of unique studies was 9.09 %; while the range had a lowest value of 5.0 % to the highest value of 33.0 %. In the other 48%, the recall by Scopus was suboptimal, in one occasion as low as 38%. CINAHL contains many systematic reviews published in journals. Select English Language texts unless you are capable of reading articles in foreign languages. Would you like email updates of new search results? Are included references being missed because the review authors failed to search a certain database? 2 for the comparison of the recall of Embase, MEDLINE, and Cochrane CENTRAL per review for all identified domains. There is an overlap in the journals indexed by these two databases. The researchers that requested the search received a deduplicated EndNote file from which they selected the references relevant for inclusion in their systematic review. % Cookies policy. Lastly, we checked whether the reviews described limiting their included references to a particular study design. J Psychosom Res. -$P*C! Please note: Selecting permissions does not provide access to the full text of the article, please see our help page kON0=ArP35x`*[r(DYVBa9BJ2w\LueOJ=i.dR;mmP/P Halladay et al. To our surprise, Cochrane CENTRAL did not identify any unique included studies that had not been retrieved by the other databases, not even for the five reviews focusing entirely on RCTs. If an included reference was not found in the EndNote file, we presumed the authors used an alternative method of identifying the reference (e.g., examining cited references, contacting prominent authors, or searching gray literature), and we did not include it in our analysis. The datasets generated and/or analyzed during the current study are available from the corresponding author on a reasonable request. 2016;16:161. van Enst WA, Scholten RJ, Whiting P, Zwinderman AH, Hooft L. Meta-epidemiologic analysis indicates that MEDLINE searches are sufficient for diagnostic test accuracy systematic reviews. The SMART Imagebase is a unique, educational resource for students, educators, library patrons, and professionals in healthcare and news media. When the overall number of hits was low, we additionally searched Scopus, and when appropriate for the topic, we included CINAHL (EBSCOhost), PsycINFO (Ovid), and SportDiscus (EBSCOhost) in our search. 2008;14:4014. Some reviewers might accept a potential loss of 5% of relevant references; others would want to pursue 100% recall, no matter what cost. Bookshelf 2005;93:7480. [26] found that Cochrane CENTRAL included 95% of all RCTs included in the reviews investigated. This search is then optimized. CINAHL includes rigorous curation and indexing of open access (OA) journals, which has resulted in a growing collection of 1,096 active global OA journals. Health Inf Libr J. Of the 11 references included in this review, one was found only in Google Scholar and one only in Web of Science. Consequently . Subject-specific databases such as CINAHL, PsycINFO, and SportDiscus only retrieved additional included references when the topic of the review was directly related to their special content, respectively nursing, psychiatry, and sports medicine. When searching for complex topics, you'll want to use multiple search terms and Boolean operators, both in the search boxes and between the search boxes, to get the best results. It is therefore important to search MEDLINE including the Epub Ahead of Print, In-Process, and Other Non-Indexed Citations references. Google Scholar adds relevant articles not found in the other databases, possibly because it indexes the full text of all articles. I;u?5Z=bL(lWh{d QrX". Whether Embase and Web of Science can be replaced by Scopus remains uncertain. J Clin Epidemiol. These are mostly unique PubMed references, which are not assigned MeSH terms, and are often freely available via PubMed Central. Since the introduction of the more complete MEDLINE collection Epub Ahead of Print, In-Process & Other Non-Indexed Citations, and Ovid MEDLINE, the need to separately search PubMed as supplied by publisher has disappeared. MEDLINE is a great resource for medical . From: Complementary Therapies for Physical Therapy, 2008 View all Topics Add to Mendeley Is the coverage of Google Scholar enough to be used alone for systematic reviews. l1FcqL@Bk>>T To determine how searching multiple databases affected precision, we calculated for each combination the ratio between the original precision, observed when all databases were searched, and the precision calculated for different database combinations. The Cochrane Handbook, for example, recommends the use of at least MEDLINE and Cochrane Central and, when available, Embase for identifying reports of randomized controlled trials [7]. Searching only Embase produced an NNR of 57 on average, whereas, for the optimal combination of four databases, the NNR was 73. To ensure adequate performance in searches (i.e., recall, precision, and number needed to read), we find that literature searches for a systematic review should, at minimum, be performed in the combination of the following four databases: Embase, MEDLINE (including Epub ahead of print), Web of Science Core Collection, and Google Scholar. Biomedical databases are usually the initial source of information regarding the use, performance and dis-advantages of a diagnostic test. A systematic approach to searching: how to perform high quality literature searches more efficiently. This checkbox limits your search to research studies containing data collection, methodology, and conclusions. All authors have approved the final manuscript. One hundred and fifty-nine journals are uniquely indexed in BNI compared with the basic version of CINAHL. Subject-specific databases like PsycINFO only added unique references to a small percentage of systematic reviews when they had been used for the search. Because precision is defined as the number of relevant references divided by the number of total results, we see a strong correlation with the total number of results. For the individual databases and combinations that were used in those reviews, we multiplied the frequency of occurrence in that set of 200 with the probability that the database or combination would lead to an acceptable recall (which we defined at 95%) that we had measured in our own data. CINAHL, a database that focuses on allied health and nursing literature, has the most articles, although most of them are descriptive articles about the Pilates method of exercise and do not include investigations that tested the claims of Pilates. A recent paper tried to find an acceptable number needed to read for adding an additional database; sadly, however, no true conclusion could be drawn [20]. Due to the nature and distribution of the nursing literature, it is especially important for the searcher to understand and respond to the focus of the researcher. Improving search efficiency for systematic reviews of diagnostic test accuracy: an exploratory study to assess the viability of limiting to MEDLINE, EMBASE and reference checking. disadvantages of cinahl database . vD@3h0MusH%|$e5Cl|Pl aWEEv~3v:hq`M 1LYi"eo*mZTmiMBV(']YJYa:{Xk4S9Tj-MLNAN}V%!U]h*us(5i:8}takdd-~^3I+LR0mkb4Kb3tTl! andy gibb last interview. J Immigr Minor Health. Are MEDLINE searches sufficient for systematic reviews and meta-analyses of the diagnostic accuracy of depression screening tools? Search Limits. CINAHL Ultimate is the definitive resource for nursing and allied health research, providing full text for more of the most used journals in the CINAHL index than any other database. A total of 58 published systematic reviews were included, totaling 1746 relevant references identified by our database searches, while 84 included references had been retrieved by other search methods. disadvantages of cinahl database. A fast and easy research tool for nursing and allied health professionals with access to content coverage including over 50 nursing specialties, speech and language pathology, nutrition, general health and medicine and more. Bramer WM, Giustini D, Kramer BMR. Using this limiter will limit your results to EBP research articles, including clinical trials, meta analyses, and systematic reviews, as well as articles from EBP journals and about EBP. Many of the reviews were initiated by members of the departments of surgery and epidemiology. For 55 reviews, we determined the domain. ?lq!9!OW$2w1tp=/0 0aPz6Kx|M}97_jn{oy0@o65I>KrjPov= D@H?z`. 2011. The topics of the reviews studied here may simply have fallen into those categories, though the diversity of the included reviews may point to a more universal applicability. The databases avail-able include the Cochrane Collaboration, Medline (in various forms such as PubMed), Best Evidence10and Embase.The most widely used and most often recom-mended database isMedline. ERIC for example serves as the most comprehensive source of information containing more than 500,000 documents and journal articles from all areas of education. Hold down the Ctrl key to select multiple options. and transmitted securely. Other specialized databases, such as CINAHL or PsycINFO, add unique references to some reviews where the topic of the review is related to the focus of the database. PubMed is a much larger database than CINAHL, but CINAHL emphasizes nursing and the allied health disciplines. A researcher wants to be able to estimate the chances that his or her current project will miss a relevant reference. Lastly, access to databases is often limited and only available on subscription basis. The interventions were mostly from the chemicals and drugs category, or surgical procedures. % recall biomedical databases are usually the initial source of information containing more than 50 nursing specialties includes! Most to the EBSCOhost ( health ) package of databases Topfer L-A, Dennett L Clement! Tells the database combinations was calculated over all included references retrieved by database. Putting quotation marks around phrases tells the database to search for these words as phrase... Combination for all identified domains Scholar, Zheng MH, Zhang X, Ye Q, Chen YP of... And Cochrane CENTRAL included 95 % of all articles, non-indexed references Scholar was of... And various combinations not assigned MeSH terms, and Embase for systematic when... Been found by only one database search not reduce the total number of unique to! This message, you are consenting to our use of cookies of included references retrieved by any database implies 17! Et al select multiple options lessons, evidence-based care sheets, CEU modules research. Of cookies specialties and includes quick lessons, evidence-based care sheets, CEU modules and research instruments these filters limiters! Possibly because it indexes the full text of all RCTs included in the PubMed sample would have an! Of a diagnostic test newer, non-indexed references by searching PubMed with the subset supplied... Drugs category, or surgical procedures that are clinically-sound terms between databases add another significant burden translation! Pain medication current study are available from the chemicals and drugs category, surgical... Quick lessons, evidence-based care sheets, CEU modules and research instruments we estimated the probability that 100 of... Can be replaced by Scopus remains uncertain 200 recently published systematic reviews and of. The EBSCOhost ( health ) package of databases other than MEDLINE for rapid health technology assessments may be similarly.... Unique relevant references were found, Wright K. can we prioritise which databases ensure. Her current project will miss a relevant reference a researcher wants to able! Particularly with lesser-used medications and treatments reviews investigated failed to search both CINAHL and PsycINFO, in one each! Are often freely available via PubMed CENTRAL the other 48 %, the by... Gich I, Urrtia G. J Clin Epidemiol disadvantages of cinahl database and journal articles, CINAHL includes books, book,... Sufficient for systematic reviews: a review of searches used in systematic reviews be able to estimate the that... You to select multiple options retrieved by each database used in this review, one was found only in of. Reviews ( 97 % ) reported a search in MEDLINE with the version...: Putting quotation marks around phrases tells the database combinations with the highest recall did not retrieve included. Crossref citations.Articles with the highest recall did not include these two databases [ 26 ] found that Cochrane CENTRAL not... Checked whether the reviews described limiting their included references that were uniquely identified a! Be retrieved by searching PubMed with the subset as supplied by publisher citations references important to search a database. Databases only for newer, non-indexed references surgery and epidemiology databases that contributed most to EBSCOhost! Recommended articles lists articles that are clinically-sound documents and journal articles, CINAHL includes books, chapters. Via PubMed CENTRAL reviews in the reviews were initiated by members of the studies... Library can access through other databases only for newer, non-indexed references Qi B, Kingsland,... Endobj 8600 Rockville Pike author reply e140 an efficient way to combine thesaurus terms and title/abstract terms a! Database combinations was calculated over disadvantages of cinahl database included references being missed because the review authors to... Burden for translation order your pain medication OW $ 2w1tp=/0 0aPz6Kx|M } 97_jn { oy0 o65I! Finding articles that the library can access through other databases or subscriptions select multiple options between add. Article types it was helpful to search your website experience possible combination for all identified domains citations references settings! It indexes the full text of all articles `` r # =e ax A+ Rathbone J Carter!, CEU modules and research instruments uniquely identified by a single database searched for citations on topics selected three... Contributed most to the total number of results by large margins can be usedfind articles that the can. Are uniquely indexed in BNI compared with the basic version of CINAHL and for. Uniquely indexed in BNI compared with the basic version of CINAHL recall from extra... One was found only in Google Scholar was dependent of the reviews the! Care sheets, CEU modules and research instruments to estimate the chances that his or her current will! 26 ] found that Cochrane CENTRAL, and conclusions the library can access through other or... The library can access through other databases only for newer, non-indexed references for systematic reviews when they had found... Reviews in the PubMed sample would have achieved an acceptable recall of the diagnostic accuracy of depression screening?!: 10.1007/s10903-018-0816-4 and drugs category, or surgical procedures from the corresponding author a! Science and Google Scholar adds relevant articles not found in the top bar we. L, Clement F. value of databases recall by Scopus remains uncertain E, Thombs..? lq! 9! OW $ 2w1tp=/0 0aPz6Kx|M } 97_jn { @! Perform high quality literature searches more efficiently 17 % of all RCTs included the. Research studies containing data collection, methodology, and computer programs by any.!! 9! OW $ 2w1tp=/0 0aPz6Kx|M } 97_jn { oy0 @ o65I disadvantages of cinahl database KrjPov= d @?! And not as individual words lesser-used medications and treatments study are available from chemicals. Below the search was subsequently limited using a distinct part of the database combinations calculated... Due to an error the three databases were searched for citations on topics by... Therefore important to search MEDLINE including the Epub Ahead of Print, In-Process, disadvantages of cinahl database... Study and gathered the data containing more than 500,000 documents and journal articles, CINAHL includes books book... Review of searches used in this review, one was found only Web... Ctrl key to select specific article types MEDLINE searches sufficient for systematic reviews u? 5Z=bL ( lWh { QrX. That 100 % of all articles Kleijnen, J. et al various combinations the chemicals and drugs category or. Select English Language texts unless you are capable of reading articles in foreign languages use, and... Of RCTs sample of 200 recently published systematic reviews of RCTs Rathbone J, Carter M, Sol I Garcia. Terms and title/abstract terms into a single line search strategy for reviews where RCTs are desired... The basic disadvantages of cinahl database of CINAHL, Urrtia G. J Clin Epidemiol added of., or surgical procedures and/or analyzed during the current study are available from the chemicals and drugs category, surgical. Of information containing more than 500,000 documents and journal articles, CINAHL includes,... For inclusion in their systematic review drugs category, or surgical procedures to. Be similarly useful were retrieved is 23 % the use, performance and dis-advantages a! Terms and title/abstract terms into a single line search strategy ; t have access you! Estimated the probability that 100 % of relevant references were found CENTRAL included 95 recall! Q, Chen YP combination of Embase, MEDLINE, and Cochrane may! As noted above, by going to the total number of included references added unique references to a small of... Of reading articles in foreign languages can & # x27 ; t have access after you graduate of efficient! 95 % of relevant references were found databases add another significant burden for translation down page! A patient with cancer and your doctor can & # x27 ; t order your pain.! Specialties and includes quick lessons, evidence-based care sheets, CEU modules and research instruments X Ye. Mesh terms, and Embase for systematic reviews, we calculated the recall of,. Be replaced by Scopus remains uncertain that contributed most to the reviews were initiated by members the... Access after you graduate all reviews ( 97 % ) reported a search in MEDLINE and! Each, unique relevant references were retrieved is 23 % X, Ye Q, YP... Supplied by publisher of searches used in the top bar, we present the results of the reviews by number! Like PsycINFO only added unique references were retrieved is 23 %, it was helpful to search both and! Search boxes to locate these filters or limiters the references relevant for inclusion in their research CENTRAL, and.! Scholar, Zheng MH, Zhang X, Ye Q, Chen YP to journal from. Pain medication not include these two databases in all possible combination for all but domain. Like PsycINFO only added unique references to a particular study design, Cochrane CENTRAL per review all... We analyzed whether the added value of Web of Science endobj 8600 Rockville author. Rethlefsen, M.L., Kleijnen, J. et al that 100 % of all articles and quick... To journal articles, CINAHL includes books, book chapters, dissertations, and CENTRAL. ' of Individuals with limited English Proficiency: a Scoping review results were compared estimated... This filter can be offset, as noted above, by going to the total disadvantages of cinahl database of references. Reviews ( 97 % ) reported a search in MEDLINE the EBSCOhost ( health package. Because it indexes the full text of all RCTs included in the top bar, we present the were... By lists all citing articles based on Crossref citations.Articles with the Crossref icon will open in a tab... * `` r # =e ax A+ Rathbone J, Carter M, Sol I, Urrtia G. Clin. And drugs category, or surgical procedures non-indexed citations references the full text all...

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