Twiggs L B, Potish R A, Leung B S, Carson L F, Adcock L L, Savage J E, Prem K A
Department of Obstetrics and Gynecology, University of Minnesota Medical School, Minneapolis 55455.
Gynecol Oncol. 1987 Oct;28(2):156-60. doi: 10.1016/0090-8258(87)90209-5.