1. State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China
2. Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
3. Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
4. Department of Basic and Translational Sciences, University of Pennsylvania School of Dental Medicine, Philadelphia, Pennsylvania, USA