1. Department of Oral-maxillofacial Head and Neck Oncology, Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R China
2. Department of Oral and Maxillofacial Surgery, First Affiliated Hospital of Huzhou University, Huzhou, Zhejiang, P.R China
3. Department of Oral and Maxillofacial Surgery, Second People’s Hospital of Changshu, Changshu, Jiangsu, P.R China