1. Department of Obstetrics and Gynecology, Chi-Mei Foundation Medical Center, Tainan, Taiwan
2. Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
3. Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
4. Department of Biomedical Sciences, Chung Shan Medical University, Taichung, Taiwan
5. School of Medicine, Chung Shan Medical University, Taichung, Taiwan
6. Department of Obstetrics and Gynecology, Chung Shan Medical University Hospital, Taichung, Taiwan