title: Twin birth weight discordance and spontaneous versus indicated preterm birth.
authors: F
authors: F
authors: Witter
mesh_terms: D001724:Birth Weight; D002585:Cesarean Section; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D007752:Obstetric Labor, Premature; D011247:Pregnancy; D011272:Pregnancy, Multiple; D014427:Twins