1. Department of Dermatology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
2. Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
3. Department of Dermatology, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China