title: Commentary on Koluchova's "severe deprivation in twins: a case study".
mesh_terms: D002648:Child; D002657:Child Development; D002664:Child Nutritional Physiological Phenomena; D002668:Child Rearing; D002675:Child, Preschool; D004200:Diseases in Twins; D004493:Education; D005191:Family Characteristics; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000209:etiology* / Q000628:therapy; D007360:Intelligence; D008297:Male; D011247:Pregnancy; D011610:Psychosocial Deprivation; D014427:Twins