1. Nursing Department, Tongji Hospital of Tongji Medical College of Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China
2. School of Nursing, Tongji Medical College of Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, China
3. Department of Gynaecology and Obstetrics, Chongqing Health Center for Women and Children (Women and Children’s Hospital of Chongqing Medical University), 120 Longshan Road, Chongqing 401147, China