1. Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Stomatological Hospital, Sun Yat-Sen University, No. 56, Lingyuan West Road, Guangzhou, Guangdong, China
2. Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
3. School of Biomedical Sciences, Faculty of Medicine, the Chinese University of Hong Kong, Hong Kong SAR