The world's most comprehensive source of full text for medical journals, providing full text for nearly 1,200 journals indexed in MEDLINE. This database contains full text for many of the most used journals in the MEDLINE index.
Developed by the National Center for Biotechnology Information (NCBI) and located at the National Institutes of Health (NIH), PubMed is a web-based search tool for accessing citations and full-text journals in medicine and life sciences.
PubMed Central 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.
A multidisciplinary index to the journal literature of the social and natural sciences. It fully indexes more than 1,725 journals across 50 social sciences disciplines, and items from over 3,300 of the leading scientific and technical journals.