Locked twins, chin to chin, obstructing labor.
D002680:Chin; D004420:Dystocia / Q000209:etiology*; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D008499:Medical Records; D008910:Minnesota; D011247:Pregnancy; D011272:Pregnancy, Multiple; D014427:Twins
DYSTOCIA/etiology and pathogenesis; PREGNANCY, MULTIPLE/case reports