title: [An investigation of psychiatric disorders in Haidian District of Beijing (author's transl)].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D002681:China; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D001523:Mental Disorders / Q000453:epidemiology* / Q000209:etiology / Q000628:therapy; D008875:Middle Aged