title: PERINATAL MORTALITY IN TWIN PREGNANCY.
mesh_terms: D001724:Birth Weight; D036861:Delivery, Obstetric; D005260:Female; D006801:Humans; D007226:Infant Mortality; D007746:Labor Presentation; D054238:Perinatal Mortality; D011225:Pre-Eclampsia; D011247:Pregnancy; D011272:Pregnancy, Multiple; D059285:Pregnancy, Twin; D012723:Sex; D013223:Statistics as Topic; D014427:Twins
keywords: BIRTH WEIGHT; DELIVERY; INFANT MORTALITY; LABOR PRESENTATION; PREGNANCY; PREGNANCY TOXEMIAS; PREGNANCY, MULTIPLE; SEX; STATISTICS; TWINS