[1] Peking Univ, Dept Dermatol & Venerol, Hosp 1, Beijing, Peoples R China
[2] Capital Med Univ, Dept Dermatol & Venerol, Beijing Childrens Hosp, Beijing, Peoples R China
[3] Chinese Acad Med Sci, Dept Dermatol & Venerol, Inst Skin Dis, Beijing, Peoples R China
[4] Chongqing Med Univ, Dept Dermatol & Venerol, Childrens Hosp, Chongqing, Peoples R China
[5] Guangzhou Childrens Hosp, Dept Dermatol & Venerol, Guangzhou, Guangdong, Peoples R China
[6] Shanghai Jiao Tong Univ, Dept Dermatol & Venerol, Xin Hus Hosp, Sch Med, Shanghai 200030, Peoples R China
[7] Shanghai Childrens Med Ctr, Dept Dermatol & Venerol, Shanghai, Peoples R China