1. Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan, Peoples Republic of China.
2. Department of Physical Medicine and Rehabilitation, Taipei Veterans General Hospital, Taipei, Taiwan, Peoples Republic of China.
3. Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan, Peoples Republic of China.
4. Institute of Anatomy and Cell Biology, National Yang-Ming University, Taipei, Taiwan, Peoples Republic of China.
5. Division of Obstetrics and Gynecology, Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan, Peoples Republic of China.
6. Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei, Taiwan, Peoples Republic of China.
7. Animal Technology Institute Taiwan, Miaoli, Taiwan, Peoples Republic of China.