Aspects of the natural history and clinical presentation of depression.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001007:Anxiety; D003863:Depression / Q000150:complications / Q000453:epidemiology / Q000209:etiology / Q000628:therapy; D001068:Feeding and Eating Disorders / Q000150:complications; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010044:Outpatient Clinics, Hospital; D012008:Recurrence; D012189:Retrospective Studies; D012893:Sleep Wake Disorders / Q000150:complications; D013315:Stress, Psychological; D013997:Time Factors