Siblings of retarded children: a population at risk.
D001007:Anxiety; D002648:Child; D002675:Child, Preschool; D003220:Conflict, Psychological; D005201:Fantasy; D006117:Grief; D006167:Guilt; D006801:Humans; D007062:Identification, Psychological; D008607:Intellectual Disability; D008297:Male; D009034:Mother-Child Relations; D010287:Parent-Child Relations; D011336:Probability; D012380:Role; D012801:Sibling Relations