Fetal mortality and morbidity in twin pregnancy.
D001724:Birth Weight; D005260:Female; D005313:Fetal Death; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D007743:Labor, Obstetric; D006831:Polyhydramnios / Q000401:mortality; D011225:Pre-Eclampsia; D011247:Pregnancy; D014427:Twins; D014900:West Indies