The permanent lack of SEXUAL DEVELOPMENT in an individual. This defect is usually observed at an age after expected PUBERTY.

Men and women working in the provision of health services, whether as individual practitioners or employees of health institutions and programs, whether or not professionally trained, and whether or not subject to public regulation. (From A Discursive Dictionary of Health Care, 1976)

An agency of the PUBLIC HEALTH SERVICE concerned with the overall planning, promoting, and administering of programs pertaining to maintaining standards of quality of foods, drugs, therapeutic devices, etc.

The study of the origin, nature, properties, and actions of drugs and their effects on living organisms.

Disorders that result from the intended use of PHARMACEUTICAL PREPARATIONS. Included in this heading are a broad variety of chemically-induced adverse conditions due to toxicity, DRUG INTERACTIONS, and metabolic effects of pharmaceuticals.

The branch of pharmacology that deals directly with the effectiveness and safety of drugs in humans.

Attitudes of personnel toward their patients, other professionals, toward the medical care system, etc.

Systems developed for collecting reports from government agencies, manufacturers, hospitals, physicians, and other sources on adverse drug reactions.