Healthstar is produced cooperatively by the National Library of Medicine and the American Hospital Association. It focuses on Health Services, Technology, Administration and Research literature. Cancerlit is prepared by the National Cancer Institute, it includes journal citations, proceedings of meetings, government reports, symposia and selected monographs. It covers the period from 1982 to the present. The Best Evidence Collection consists of two journals ACP Journal Club, a publication of the American College of Physicians, and Evidence-Based Medicine, a joint publication with the British Medical Journal Group.
Protocols are the background, objectives and methods of reviews in preparation.
The present collection includes 113 of the most widely read journals in the fields of medicine and nursing. AARP Ageline provides bibliographic references and original abstracts for materials related to aging and middle age, from an interdisciplinary perspective of psychology, economics, sociology, gerontology, public policy, business, health and health care services, and consumer issues. Documents on health care and policy comprise about half the database.