Drugs in the elderly.
D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D004305:Dose-Response Relationship, Drug; D004347:Drug Interactions; D011307:Drug Prescriptions; D004359:Drug Therapy, Combination; D006801:Humans; D019338:Polypharmacy; D012307:Risk Factors; D012680:Sensitivity and Specificity