Secondary sex ratio following bleeding in pregnancy.
D000037:Abruptio Placentae; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D010923:Placenta Previa; D011247:Pregnancy; D011250:Pregnancy Complications, Hematologic; D012723:Sex; D014592:Uterine Hemorrhage; D014798:Vital Statistics