1. Department of Oral and Maxillofacial‐Head and Neck Oncology, Shanghai Ninth People's Hospital Shanghai Jiao Tong University School of Medicine Shanghai China
2. College of Stomatology Shanghai Jiao Tong University Shanghai China
3. National Center for Stomatology Shanghai China
4. National Clinical Research Center for Oral Diseases Shanghai China
5. Shanghai Key Laboratory of Stomatology Shanghai China
6. Department of Gastroenterology, Affiliated Hospital of Jiangsu University Jiangsu University Zhenjiang China
7. Faculty of Dentistry University of Debrecen Debrecen Hungary