Children's cognitive, language and motor development were measured with Bayley-III, behaviour with Wolke's ratings and maternal self-esteem with Rosenberg self-esteem scale. 
Bayley-III
Children's cognitive, language and motor development were measured with Bayley-III, behaviour with Wolke's ratings and maternal self-esteem with Rosenberg self-esteem scale. 
Wolke's ratings
Children's cognitive, language and motor development were measured with Bayley-III, behaviour with Wolke's ratings and maternal self-esteem with Rosenberg self-esteem scale. 
Rosenberg self-esteem scale