Affiliation: | 1. Division of Colon and Rectal Surgery, Taoyuan Armed Forces General Hospital, Taoyuan, Taiwan;2. Department of Obstetrics and Gynecology, Taoyuan Armed Forces General Hospital, Taoyuan, Taiwan;3. Department of Surgery, Taoyuan Armed Forces General Hospital, Taoyuan, Taiwan;4. Department of Obstetrics and Gynecology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan |