Mentally retarded children in Mannheim: an epidemiological, clinical and socio-psychological study.
D000293:Adolescent; D002648:Child; D004812:Epidemiologic Methods; D005190:Family; D005260:Female; D005860:Germany, West; D006801:Humans; D008607:Intellectual Disability / Q000175:diagnosis*; D008297:Male; D011581:Psychological Tests; D012924:Social Conditions