The Iowa 500: familial and clinical findings favor two kinds of depressive illness.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000437:Alcoholism / Q000453:epidemiology; D003863:Depression / Q000145:classification / Q000235:genetics*; D005260:Female; D006760:Hospitalization; D006778:Hospitals, Psychiatric; D006801:Humans; D007484:Iowa; D008297:Male; D008875:Middle Aged; D010290:Parents; D012737:Sex Factors; D013405:Suicide / Q000453:epidemiology