1. Department of Dermatology, Shengjing Hospital of China Medical University, No. 36, Sanhao Street, Shenyang 110004, P.R. China
2. Department of Pathophysiology, College of Basic Medical Science, China Medical University, No. 77, Puhe Road, Shenbei New District, Shenyang 110122, P.R. China
3. Department of Dermatology, Central Hospital Affiliated to Shenyang Medical College, No. 7, Nanqi West Road, Tiexi District, Shenyang 110024, P.R. China