PubMed and PubMed Central (PMC) — What is the Difference?
Most of you know what PubMed is, but for anyone confused about it or just plain interested in the relationship between PubMed and the similarly named PubMed Central (PMC), the quick and dirty difference is summed up here:
PubMed is home to approximately 21 million citations and abstracts
PMC is home to approximately 2 million free full-text articles
For those of you seeking a fuller–but still brief–rundown of PubMed vs. PMC, here are a few more distinctions:
- Began in 1996, born out of MEDLINE
- Is a database comprising citations and abstracts from the MEDLINE biomedical literature, as well as from life sciences journals and online books
- Includes links to full-text articles at several thousand journal web sites as well as to most of the articles in PMC
- Began in 2000, born out of a 1998 conversation between two distinguished scientists at a San Francisco bakery (more on that in a different post…)
- Is a free archive containing more than two million full-text biomedical and life sciences journal articles and serves as a digital counterpart to NLM’s extensive print journal collection
- Includes links to corresponding citations in PubMed and contains certain types of literature such as book reviews, which are not included in PubMed
For a summary and description of the principles and other components of the PMC archive, check out the PMC Overview.
Guest Post by Marla Fogelman. On ReferencePoint: a blog of the National Library of Medicine. October 6, 2011. http://blog.citizen.apps.gov/ReferencePoint/
Marla Fogelman has been a member of the PubMed Central (PMC) production team at the National Center for Biotechnology Information (NCBI) since 2001. Her posts cover PMC-related topics, factoids and developments.
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