1 Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital, Linkou Medical Center, Chang Gung University College of Medicine, Taoyuan, Taiwan.
2 Division of Obstetrics and Gynecology, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
3 Division of Hospital Medicine, Department of Internal Medicine, National Taiwan University College of Medicine, Taipei, Taiwan.
4 Division of Hospital Medicine, Department of Internal Medicine, Taipei City Hospital Zhongxing Branch, Taipei, Taiwan.