The role of ultrasound in the management of twin pregnancies.
D001724:Birth Weight; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D006831:Polyhydramnios / Q000175:diagnosis; D011247:Pregnancy; D011272:Pregnancy, Multiple; D012306:Risk; D014427:Twins; D014463:Ultrasonography