Mental development of children in families and in infants' homes.
D002648:Child; D002657:Child Development; D002674:Child, Institutionalized; D002675:Child, Preschool; D003604:Czechoslovakia; D005260:Female; D006801:Humans; D007223:Infant; D007224:Infant Care; D007325:Institutional Practice; D008607:Intellectual Disability; D007804:Language Development; D008297:Male; D008426:Maternal Deprivation; D011610:Psychosocial Deprivation; D012919:Social Behavior; D012959:Socioeconomic Factors