1. Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei, Taiwan
2. Division of Obstetrics and Gynecology, Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
3. Institute of Anatomy and Cell Biology, School of Medicine, National Yang-Ming University, Taipei, Taiwan
4. Division of Biotechnology, Animal Technology Institute Taiwan, Chunan, Miaoli, Taiwan
5. Institute of Pharmacology, School of Medicine, National Yang-Ming University, Taipei, Taiwan
6. Department of Education and Research, Taipei Veterans General Hospital, Taipei, Taiwan