[Tian, Li-Ming; Xie, Hong-Fu; Li, Ji] Cent S Univ, Dept Dermatol, Xiangya Hosp, Changsha 410008, Hunan, Peoples R China.
[Yang, Ting] Univ S China, S China Hosp, Dept Clin Med, Sch Med, Hengyang, Peoples R China.
[Hu, Yao-Hua] Univ S China, S China Hosp, Lab Genet Dis, Hengyang, Peoples R China.
[Wang, Wei-Zhen] Huazhong Univ Sci & Technol, Dept Dermatol, Hosp Wuhan 1, Tongji Med Coll, Wuhan 430074, Peoples R China.