1. Department of Obstetrics & Gynecology, Xiangya Hospital, Hunan, P. R. China
2. Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, P. R. China
3. Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha, P. R. China
4. iStat Biomedical Co. Ltd., Taipei, Taiwan
5. Department of Obstetrics & Gynecology, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
6. Department of Obstetrics and Gynecology, ShengJing Hospital of China Medical University, Liaoning, P. R. China
7. Department of Pharmacy, Xiangtan Central Hospital, Xiangtan, P. R. China