1. Department of Oromaxillofacial – Head and Neck Surgery, Tianjin Stomatological Hospital, Tianjin, China (mainland)
2. Tianjin Medical University, Tianjin, China (mainland)
3. Department of Operative Dentistry and Endodontics, Tianjin Stomatological Hospital, Tianjin, China (mainland)
4. Department of Stomatology, Xuzhou Central Hospital, Xuzhou, Jiangsu, China (mainland)