Contracted pelvis.
D052178:Cephalopelvic Disproportion; D002585:Cesarean Section; D004420:Dystocia / Q000209:etiology*; D005260:Female; D006801:Humans; D010388:Pelvis / Q000002:abnormalities*; D011247:Pregnancy
CESAREAN SECTION; DYSTOCIA/etiology and pathogenesis; PELVIS/abnormalities