1. Department of Orthodontics, Nantong Stomatological Hospital, The Affiliated Nantong Stomatological Hospital of Nantong University
2. Department of Prosthodontics, Nantong Stomatological Hospital, The Affiliated Nantong Stomatological Hospital of Nantong University
3. Department of Stomatology, Affiliated Hospital of Inner Mongolia Chifeng University
4. The Fourth Affiliated Hospital of Harbin Medical University