[1] Guangzhou Meidcal Univ, Guangdong Prov Dermatol Hosp, Guangzhou, Guangdong, Peoples R China
[2] Guangzhou Meidcal Univ, Affiliated Hosp 3, Dept Dermatol, Guangzhou, Guangdong, Peoples R China
[3] Hong Kong Polytech Univ, Dept Rehabil Sci, Hong Kong, Hong Kong, Peoples R China