Affiliation: | a Department of Obstetrics and Gynecology, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan, Republic of China b School of Medicine, Fu Jen Catholic University, Taipei, Taiwan, Republic of China c Department of Obstetrics and Gynecology, National Taiwan University Hospital, Taipei, Taiwan, Republic of China d Department of Anesthesiology, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan, Republic of China e School of Medicine, Taipei Medical University, Taipei, Taiwan, Republic of China f Department of Nursing, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan, Republic of China g Department of Obstetrics and Gynecology, Li Shin Hospital, Taoyuan, Taiwan, Republic of China |