Medline1950 - current
Major bibliographic database for clinical medicine, including: internal medicine, general medicine, primary care, family medicine, and general practice, as well as: veterinary medicine, nursing, allied health, dentistry, and pre-clinical sciences. It is a primary source of global information from international literature on biomedicine, including the following topics as they relate to biomedicine and health care: biology, plant and animal science, environmental science, biophysics, marine biology and chemistry
Health and Psychosocial Instruments1985-Present
Bibliographic index with abstracts, featuring material on unpublished measurement instruments for medical or medically related condition or treatment outcomes that clinicians might ask a patient about. Includes "information-gathering tools for clinicians that are discussed in journal articles, such as questionnaires, interview schedules, tests, checklists, rating and other scales, coding schemes, and projective techniques. Over 2/3 of the tools are in medical and nursing areas such pain measurement, quality of life assessment, and drug efficacy evaluation....In addition to medical measurement instruments, HaPI presents tests used in medically related disciplines including psychology, social work, occupational therapy, physical therapy, and speech & hearing therapy."
PsycINFO1872 - present
Bibliographic database "providing abstracts and citations to the scholarly literature in the psychological, social, behavioral, and health sciences. The database includes material of relevance to psychologists and professionals in related fields such as psychiatry, management, business, education, social science, neuroscience, law, medicine, and social work." It provides access to journal articles, books, chapters, and dissertations. Subjects: Psychology; also medicine, psychiatry, social work, linguistics, education, sociology, nursing, and other areas.

The Cochrane LibraryCurrent
Contains seven regularly updated, evidence-based health care databases.