1. State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine, Ministry of Education, School and Hospital of Stomatology, Wuhan University
2. Department of Stomatology, The Central Hospital of Enshi Tujia and Miao Autonomous Perfecture
3. Department of Periodontology, School of Dental Medicine, University of Bern
4. Medical Research Institute, School of Medicine, Wuhan University