1. College of Bioengineering and the Key Laboratory of Biorheological Science and Technology, Ministry of Education, Chongqing University, Chongqing, China
2. Rehabilitation Medicine Center, West China Hospital, Sichuan University, Chengdu, China
3. National Clinical Research Center for Geriatrics, West China Hospital, and the Med-X Center for Manufacturing, Sichuan University, Chengdu, China