1 Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan.
2 Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan, Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan, Department of Biotechnology, Asia University, Taichung, Taiwan, School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan, Institute of Clinical and Community Health Nursing, Taipei, Taiwan, Department of Obstetrics and Gynecology, School of Medicine, National Yang-Ming University, Taipei, Taiwan.