[The psychological development of the premature child. Research methods and results of a survey].
D002648:Child; D002653:Child Behavior Disorders; D003625:Data Collection; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature; D002666:Psychology, Child; D012107:Research Design
CHILD BEHAVIOR DISORDERS; CHILD PSYCHOLOGY; INFANT, PREMATURE