1. College of Orthopaedics and Traumatology, Henan University of Chinese Medicine, Zhengzhou, Henan, China
2. Orthopaedic Department, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan, China
3. Clinical Medicine, Gannan Tibetan Autonomous Prefecture Tibetan Medical Hospital, Gannan, Gansu, China