[Psychological longitudinal studies of children at risk, aged 18 months to 3 years].
D002657:Child Development; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007234:Infant, Premature; D011581:Psychological Tests; D012306:Risk
Psychologische Längsschnittuntersuchung von Risikokindern im Alter von 1,6 und 3,0 Jahren.