1. Stomatology Hospital, School of Stomatology Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University Hangzhou People's Republic of China
2. Department of Orthopaedics & Traumatology Li Ka Shing Faculty of Medicine, The University of Hong Kong Hong Kong China