Affiliation: | 1. Department of Dermatovenereology, West China Hospital, Sichuan University, , Chengdu, China;2. Department of Dermatology & Rheumatology, The Second Affiliated Hospital of Kunming Medical University, , Kunming, China;3. Department of Pathology, West China Hospital, Sichuan University, , Chengdu, China;4. State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, , Chengdu, China |