1. Department of Nursing, The Third Xiangya Hospital, Central South University, Changsha 410013, China
2. Xiangya Nursing School, Central South University, Changsha 410031, China
3. Department of Mechanical Engineering, Politecnico di Milano, Milan 10056, Italy
4. Affiliated Hospital of Jinggangshan University, Jianggangshan 343100, China
5. ZiBo Hospital of Traditional Chinese and Western Medicine, Zibo 255020, China
6. Hunan Key Laboratory of Nursing, Changsha 410013, China