title: [Case report of an undetected twin].
mesh_terms: D001238:Asphyxia Neonatorum / Q000209:etiology; D001720:Birth Injuries / Q000209:etiology*; D002585:Cesarean Section; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007247:Infertility, Female / Q000188:drug therapy; D007752:Obstetric Labor, Premature / Q000628:therapy; D011247:Pregnancy; D011272:Pregnancy, Multiple; D014427:Twins