1. Department of Obstetrics and Gynecology, Taichung Veterans General Hospital, Taichung, Taiwan.
2. Department of Nursing, Hungkuang University, Taichung, Taiwan.
3. Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan.
4. Big Data Center, China Medical University Hospital, Taichung, Taiwan.
5. Department of Public Health, Fu-Jen Catholic University, New Taipei, Taiwan.
6. Department of Health Care Management, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan.