Development of premature twins with dissimilar birth weight. I. Physical development.
D001724:Birth Weight; D001827:Body Height; D001835:Body Weight; D002675:Child, Preschool; D005260:Female; D005500:Follow-Up Studies; D006128:Growth; D006257:Head / Q000033:anatomy & histology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature; D008297:Male; D011247:Pregnancy; D012737:Sex Factors; D014427:Twins