Infant day care and attachment.
D002657:Child Development; D002675:Child, Preschool; D004522:Educational Status; D005006:Ethnicity; D005191:Family Characteristics; D005260:Female; D006801:Humans; D007223:Infant; D007224:Infant Care; D007360:Intelligence; D007406:Interview, Psychological; D008297:Male; D008426:Maternal Deprivation; D009034:Mother-Child Relations; D009769:Object Attachment; D011581:Psychological Tests; D012737:Sex Factors; D012923:Social Class