1. Department of Obstetrics and Gynecology; Tri-Service General Hospital Songshan Branch; National Defense Medical Center; Taipei Taiwan, ROC
2. Department of Gynecology and Obstetrics; Taipei City Hospital Ren-Ai Branch; Taipei Taiwan, ROC
3. Department of Pharmacology; National Defense Medical Center; Taipei Taiwan, ROC
4. Department of Physiology and Biophysics; National Defense Medical Center; Taipei Taiwan, ROC
5. Department of Pharmacology; Taipei Medical University; Taipei Taiwan, ROC
6. Department of Anesthesiology; Catholic Mercy Hospital; Hsinchu Taiwan, ROC