1. Department of Oral and Maxillofacial Surgery; 2nd Affiliated Hospital of Jiamusi University; Jiamusi City Heilongjiang People's Republic of China
2. Department of Oral and Maxillofacial Surgery; Peking University School and Hospital of Stomatology; Haidian District Beijing People's Republic of China
3. Department of Plastic and Reconstructive Surgery; 2nd Affiliated Hospital of Jiamusi University; Jiamusi City Heilongjiang People's Republic of China