Studies based on a total sample of adopted individuals and their relatives: why they were necessary, what they demonstrated and failed to demonstrate.
D000300:Adoption; D002668:Child Rearing; D003142:Communication; D004200:Diseases in Twins; D005260:Female; D006801:Humans; D008297:Male; D012557:Schizoid Personality Disorder / Q000235:genetics; D012559:Schizophrenia / Q000175:diagnosis / Q000209:etiology / Q000235:genetics*; D012569:Schizotypal Personality Disorder / Q000235:genetics; D012931:Social Environment