title: Mental and motor development in monozygotic co-twins with dissimilar birth weights.
mesh_terms: D001724:Birth Weight; D002657:Child Development; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007360:Intelligence; D007361:Intelligence Tests; D008297:Male; D009048:Motor Skills; D011247:Pregnancy; D014427:Twins