Jiangsu Provincial People's Hospital, Nanjing, Jiangsu, China
The First Affiliated Hospital of USTC, Jinan, Jinan, China
The Qian Foshan Hospital of Shandong Province, Jinan, Shandong, China
Peking university People's Hospital, Beijing, Beijing, China
Beijing Hospital, Beijing, Beijing, China
Zhongshan Hospital, Fudan University, Shanghai, Shanghai, China
West China Hospital of Stomatology Sichuan University, Chengdu, Sichuan, China