1. Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University/West China School of Nursing, Sichuan University, Chengdu 610041, China
2. Department of Orthopedics/Sports Medicine Center, the First Affiliated Hospital, Army Medical University, Chongqing 400038, China
3. School of Nursing, China Medical University, Shenyang 110122, China
4. Department of Gerontology, Sichuan Academy of Medical Sciences/Sichuan Provincial People’s Hospital, Chengdu 610072, China
5. Department of Neurobiology, Army Medical University, Chongqing 400038, China