1. Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, China.
2. Department of Orthopedics, and Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.
3. Center for Biotherapy, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.