1. Department of Stomatology, Wuxi No. 2 People’s Hospital, Wuxi, China
2. Department of Stomatology, Affiliated Hospital of Nantong University, Nantong, China
3. Department of Spine Surgery, The Second Affiliated Hospital of Nantong University, Nantong, China
4. Medical College of Nantong University, Nantong, China