Vasa praevia.
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D007744:Obstetric Labor Complications / Q000175:diagnosis*; D010920:Placenta; D011247:Pregnancy; D011248:Pregnancy Complications; D014470:Umbilical Cord / Q000098:blood supply*; D014592:Uterine Hemorrhage