1. Department of Stomatology, The Second Affiliated Hospital of Air Force Medical University, Xi'an, People’s Republic of China
2. Department of Oral Anatomy and Physiology& TMD and Orofacial Pain, School of Stomatology, The Air Force Medical University, Xi'an, People’s Republic of China
3. Department of Dermatology, The Second Affiliated Hospital of Air Force Medical University, Xi'an, People’s Republic of China