1. Department of Obstetrics and Gynecology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi, Taiwan
2. Department of Orthopedics, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi, Taiwan
3. Department of Nursing, Chung Jen Junior College of Nursing, Health Science and Management, Chia-Yi, Taiwan
4. Department of Medical Research, Clinical Data Center, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi, Taiwan