1. Institute of Community Health Care, National Yang-Ming University, Taipei, Taiwan
2. Department of Nursing, Taipei City Hospital Heping Fuyou Branch, Taipei, Taiwan
3. Department of Obstetrics and Gynecology, Taipei City Hospital, Taipei, Taiwan
4. Department of Obstetrics and Gynecology, Taipei Medical University, Taipei, Taiwan
5. Department of Traditional Chinese Medicine, Taipei Medical University Hospital, Taipei, Taiwan