title: A rare complication of twin pregnancy: impaction of twins. (Case report).
mesh_terms: D000328:Adult; D001946:Breech Presentation; D002585:Cesarean Section; D005260:Female; D005322:Premature Rupture of Fetal Membranes; D006801:Humans; D007231:Infant, Newborn; D007746:Labor Presentation; D008297:Male; D007744:Obstetric Labor Complications / Q000601:surgery*; D011247:Pregnancy; D014427:Twins; D014430:Twins, Monozygotic