Geriatrics: an emerging challenge to the health professions.
D000339:Affect; D000368:Aged; D000375:Aging; D002908:Chronic Disease; D005853:Geriatrics; D006281:Health Occupations; D006801:Humans; D007360:Intelligence; D009747:Nutritional Physiological Phenomena; D010809:Physical Fitness; D011586:Psychology, Clinical; D012179:Retirement