1. Department of Obstetrics and Gynecology, Taipei Medical University Hospital, Taipei, Taiwan.
2. Department of Obstetrics and Gynecology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
3. Department of Chest Medicine, Taipei City Hospital Yangming Branch, Taipei, Taiwan.
4. Infection Control Center, Taipei City Hospital Yangming Branch, Taipei, Taiwan.
5. Graduate Institute of Integration of Traditional Chinese Medicine with Western Nursing, National Taipei University of Nursing and Health Sciences, Beitou, Taipei, Taiwan.