1. State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery; West China Hospital of Stomatology, Sichuan University; Chengdu China
2. State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Oral Anaesthesiology and Intensive Care Unit; West China Hospital of Stomatology, Sichuan University; Chengdu China
3. School of Nursing and Midwifery; The University of Queensland; South Brisbane Australia
4. Unit of Periodontology and International Centre for Evidence-Based Oral Health; UCL Eastman Dental Institute; London UK
5. Division of Dentistry, School of Medical Sciences, Faculty of Biology, Medicine and Health; The University of Manchester; Manchester UK
6. State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Head and Neck Oncology; West China Hospital of Stomatology, Sichuan University; Chengdu China