Depression in elderly populations.
D000359:Aftercare; D000368:Aged / Q000523:psychology / Q000706:statistics & numerical data; D017281:Cost of Illness; D003866:Depressive Disorder / Q000175:diagnosis / Q000453:epidemiology / Q000523:psychology / Q000628:therapy; D015577:Geriatric Assessment; D006801:Humans; D008403:Mass Screening; D009730:Nursing Assessment; D011569:Psychiatric Status Rating Scales; D012307:Risk Factors; D016896:Treatment Outcome; D014481:United States / Q000453:epidemiology