title: Activity, motor coordination and attention: individual differences in twins.
mesh_terms: D001288:Attention; D002657:Child Development; D002675:Child, Preschool; D003071:Cognition; D004644:Emotions; D005260:Female; D006801:Humans; D007223:Infant; D007360:Intelligence; D008297:Male; D009043:Motor Activity; D009048:Motor Skills; D011247:Pregnancy; D014427:Twins