1. Department of Obstetrics and Gynecology, New Taipei Municipal Tu Cheng Hospital, New Taipei City, Taiwan.
2. Department of Obstetrics and Gynecology, Linkou Chang Gung Memorial Hospital and Chang Gung University, College of Medicine, Taoyuan, Taiwan.
3. Gynecologic Cancer Research Center, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.
4. Biostatistics Unit, Clinical Trial Center, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.
5. Department of Laboratory Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
6. Department of Pathology, Chang Gung Memorial Hospital Linkou Medical Center and Chang Gung University College of Medicine, Taoyuan, Taiwan.