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The PMCID (PubMed Central identifier), also known as the PMC reference number, is a bibliographic identifier for the PubMed Central open access database, much like the PMID is the bibliographic identifier for the PubMed database. The two identifiers are distinct however. It consists of "PMC" followed by a string of numbers. The format is: [35]
PubMed Central (PMC) [13] Biomedical, life sciences: 7,500,000 Free full-text archive of publications and preprints Free Yes NIH, NLM: ResearchGate: Multidisciplinary: 4,000,000 [citation needed] Commercial social networking site for scientists and researchers. Over 19 million registered users that share their articles, datasets and other ...
PubMed has been reported to include some articles published in predatory journals. MEDLINE and PubMed policies for the selection of journals for database inclusion are slightly different. Weaknesses in the criteria and procedures for indexing journals in PubMed Central may allow publications from predatory journals to leak into PubMed. [10]
Although PubMed is a comprehensive database, many of its indexed journals restrict online access. Another website, PubMed Central , provides free access to full texts. While it is often not the official published version, it is a peer-reviewed manuscript that is substantially the same but lacks minor copy-editing by the publisher.
Although PubMed is a comprehensive database, many of its indexed journals restrict online access; an additional site, PubMed Central, provides free access to full text. There are basic and advanced options for searching PubMed. Clicking on the "Review" tab will help you narrow your search to reviews.
PubMed Central is the designated repository for papers submitted in accordance with the NIH Public Access Policy and for those that fall under similar policies from other funding agencies. [12] By April 2014, the NIH had increased enforcement of compliance with its Public Access Policy by delaying continuing grant payments for noncompliance. [13]
The Entrez Global Query Cross-Database Search System is used at NCBI for all the major databases such as Nucleotide and Protein Sequences, Protein Structures, PubMed, Taxonomy, Complete Genomes, OMIM, and several others. [9] Entrez is both an indexing and retrieval system having data from various sources for biomedical research.
In a 2015 comparison with MEDLINE, PubMed Central, EMBASE and SCOPUS, DOAJ resulted to have the highest number of open access journals listed, but less than a half of them had actively published contents on DOAJ. [13] There is a partnership between DOAJ and OpenAIRE since October 2022. [14] [15]