Retraction ring; case report; Bandis' ring associated with labor in a flat pelvis; primagravida.
D002219:Carbamates; D004420:Dystocia; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D010388:Pelvis; D011247:Pregnancy
D002219:Carbamates; C000241:carbanolate
BANOL'S RING; PELVIS/flat, in labor; RETRACTION RING