Yiu-Tai Li1, Wen-Ling Lee2,3,4, Peng-Hui Wang4,5,6,7. 1. Department of Obstetrics and Gynecology, Kuo General Hospital, Tainan, Taiwan, ROC. 2. Department of Medicine, Cheng-Hsin General Hospital, Taipei, Taiwan, ROC. 3. Department of Nursing, Oriental Institute of Technology, Taipei, Taiwan, ROC. 4. Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC. 5. Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC. 6. Female Cancer Foundation, Taipei, Taiwan, ROC. 7. Department of Medical Research, China Medical University Hospital, Taichung, Taiwan, ROC.