1. Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
2. National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, Sichuan, China
3. Med-X Center for Materials, Sichuan University, Chengdu 610064, Sichuan, China