1. Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China (mainland)
2. Department of Life Sciences and Medicine, Key Laboratory of Resource Biology and Modern Biotechnology in Western China, Ministry of Education, Northwest University, Xian, Shaanxi, China (mainland)
3. Department of Orthopedics, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China (mainland)