title: Psychiatric illness in relatives of patients with Parkinson's disease: an expanded survey.
mesh_terms: D000437:Alcoholism / Q000235:genetics; D003863:Depression / Q000453:epidemiology / Q000235:genetics*; D005260:Female; D006801:Humans; D008297:Male; D010300:Parkinson Disease / Q000235:genetics*; D010414:Pennsylvania; D012559:Schizophrenia / Q000235:genetics; D012737:Sex Factors