PubMed® comprises more than 32 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full text content from PubMed Central and publisher web sites.
PubMed Central® (PMC) is the free full-text archive of biomedical and life sciences journal literature at the U.S. National Institutes of Health's National Library of Medicine.
The Cochrane Library is a collection of databases that contain different types of high-quality, independent evidence to inform healthcare decision-making.
This database contains over 16 500 peer-reviewed open access journals covering all areas of science, technology, medicine, social sciences, arts and humanities.
The Global Index Medicus (GIM) provides worldwide access to biomedical and public health literature produced by and within low-middle income countries.