PubMed (NCBI) PubMed indexes worldwide biomedical literature including research, clinical practice, administration, policy issues, and health care services. Articles indexed from 5,663 journals and many serials and online books. Some full text. Subsets to PubMed Central (full text) and PubMed Health (for consumers). Coverage 1946- to present. Access: all. Produced by the National Library of Medicine. Updated 8/14/14