1. Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat‑sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, Guangdong 510055, P.R. China
2. Department of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330046, P.R. China
3. Stomatological Hospital of Guangdong Province, Affiliated to Southern Medical University, Guangzhou, Guangdong 510280, P.R. China