1. State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University; Department of Head and Neck Oncology; No. 14, Section 3, South Renmin Road Chengdu Sichuan China 610041
2. West China Hospital of Stomatology, Sichuan University, State Key Laboratory of Oral Diseases; Department of Oral and Maxillofacial Surgery; No. 14, Section Three, Ren Min Nan Road Chengdu Sichuan China 610041
3. The University of Manchester; Division of Dentistry, School of Medical Sciences, Faculty of Biology, Medicine and Health; JR Moore Building Oxford Road Manchester UK M13 9PL