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In 1972, EM had joined with Elsevier and later, in 1975, formed EMBASE (Excerpta Medica database) which had released electronic access to abstract journals. Following feedback from the EMBASE user community, EMBASE Classic was created as a separate database to supplement EMBASE as a backfile of medical journals from 1947-1973 which provides ...
PubMed is a free database including primarily the MEDLINE database of references and abstracts on life sciences and biomedical topics. The United States National Library of Medicine (NLM) at the National Institutes of Health maintains the database as part of the Entrez system of information retrieval.
The abridged edition is a subset of the journals covered by PubMed ("core clinical journals"). [12] The last issue of Index Medicus was published in December 2004 (Volume 45). The stated reason for discontinuing the printed publication was that online resources had supplanted it, [ 13 ] most especially PubMed , which continues to include the ...
Many of these database companies use the same name for their file format as they do for their database (including Copac, CSA, ISI, Medline, Ovid, PubMed, and SciFinder). For the ability to retrieve citations from the particular databases (rather than the file format), please refer to the database connectivity table that is below this table.
Cochrane researchers will perform searches of medical and health databases including MEDLINE/PubMed, EMBASE, PsycINFO, CINAHL, etc.; a continually updated database of trials called the Cochrane Central Register of Controlled Trials (CENTRAL); hand searching, where researchers look through entire libraries of scientific journals by hand and ...
According to the Journal Citation Reports, the journal had a 2014 impact factor of 2.2. [6] In 2015 the journal did not receive an impact factor as it was delisted because of citation stacking. [ 7 ] The 2016 impact factor subsequently fell to 1.8 [ 8 ] and in the 2018 release of JCR 2017 fell further to 1.5.
Scopus is a scientific abstract and citation database, launched by the academic publisher Elsevier as a competitor to older Web of Science in 2004. [1] An ensuing competition between the two databases has been characterized as "intense" and is considered to significantly benefit their users in terms of continuous improvent in coverage, search/analysis capabilities, but not in price.