PubMed Central

PubMed Central (PMC) is the U.S. National Library of Medicine’s digital archive of life sciences journal literature. Access to the full text of articles in PMC is free, except where a journal requires a subscription for access to recent articles. [Source: NIH’s National Center for Biotechnology Information (NCBI) in the National Library of Medicine (NLM)]


Link: http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PMC

Tutorial: http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=helppmc&part=pmchelp#pmchelp.Searching_PubMed_Cen