Reaction of preschool children to the birth of a sibling.
D000223:Adaptation, Psychological; D000367:Age Factors; D000374:Aggression; D000818:Animals; D000829:Animals, Domestic; D001010:Anxiety, Separation; D001722:Birth Order; D001942:Breast Feeding; D002654:Child Care; D002657:Child Development; D002675:Child, Preschool; D005219:Father-Child Relations; D005260:Female; D006760:Hospitalization; D006801:Humans; D007223:Infant; D008297:Male; D008426:Maternal Deprivation; D009034:Mother-Child Relations; D009863:Only Child; D011157:Population Dynamics; D011247:Pregnancy; D012043:Regression, Psychology; D012737:Sex Factors; D012801:Sibling Relations; D012890:Sleep; D014039:Toilet Training