1. Department of Nursing Teaching and Research, The Third Xiangya Hospital, Central South University, Changsha, China; Xiangya Nursing School, Central South University, Changsha, China
2. Xiangya Nursing School, Central South University, Changsha, China
3. Department of Critical Care Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
4. Center of Organ Transplantation, The Third Xiangya Hospital, Central South University, Changsha, China
5. Xiangya Nursing School, Central South University, Changsha, China; Department of Nursing, The Third Xiangya Hospital, Central South University, Changsha, China