1. Clinical Nursing Teaching and Research Section, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China
2. Xiangya Nursing School, Central South University, Changsha, Hunan, China
3. Xiangya School of Public Health, Central South University, Changsha, Hunan, China
4. Department of Urology, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
5. Department of General Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China