title: Family and biologic variables in the same etiologic studies of schizophrenia: a proposal.
mesh_terms: D000300:Adoption; D002668:Child Rearing; D002674:Child, Institutionalized; D003423:Critical Period, Psychological; D004200:Diseases in Twins; D005190:Family; D006801:Humans; D007398:Interpersonal Relations; D009034:Mother-Child Relations; D010290:Parents; D012107:Research Design; D012559:Schizophrenia / Q000235:genetics* / Q000378:metabolism; D012931:Social Environment