1. Department of Stomatology, School of Medicine, Xiamen University, Xiamen 361005, China
2. Department of Stomatology, Xiang’an Hospital of Xiamen University, Xiamen 361005, China
3. Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
4. State Key Laboratory of Vaccines for Infectious Diseases, Xiang’an Biomedicine Laboratory, Xiamen 361005, China