Institution: | aDepartment of Oral and Maxillofacial Surgery, Guanghua School of Stomatology & Institute of Stomatological Research, Sun Yat-sen University, Guangzhou, Guangdong 510055, China;bDepartment of Oral and Maxillofacial Surgery, The Second Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510120, China |