1. Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan
2. Department of Obstetrics and Gynecology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
3. Department of Obstetrics and Gynecology, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
4. Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
5. Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
6. Graduate Institute of Biochemistry, National Defense Medical Center, Taipei, Taiwan