[1] Ctr Dermatol & Hair Dis Prof Trueb, Zurich, Switzerland
[2] Univ Zurich, Zurich, Switzerland
[3] Univ Alcala, Ramon y Cajal Hosp, Madrid, Spain
[4] Med Univ Graz, Dept Dermatol, Ctr Aesthet Med, Graz, Austria
[5] Royal London Hosp, London, England
[6] Aristotle Univ Thessaloniki, Med Sch, Hosp Skin & Venereal Dis, Dept Dermatol Venereol 1, Thessaloniki, Greece
[7] Univ Fed Fluminense, Hosp Univ Antonia Pedro, Ctr Ciencias Med, Dept Dermatol, Niteroi, RJ, Brazil
[8] San Gabriel Clin, Dept Dermatol & Venereol, Lima, Peru
[9] Dermed Clin, Mexico City, DF, Mexico
[10] Moscow City Hlth Dept, Moscow Sci & Pract Ctr Dermatol & Cosmetol, Moscow, Russia
[11] Kharkov Natl Univ, Sch Med, Gen & Clin Immunol & Allergol Dept, Kharkov, Ukraine
[12] Yonsei Univ, Wonju Coll Med, Dept Dermatol, Gangwon Do, South Korea
[13] Chennai Skin Fdn & Yesudian Res Inst, Madras, Tamil Nadu, India
[14] Beppu Garden Hill Clin, Beppu, Oita, Japan
[15] Kurata Clin, Beppu, Oita, Japan
[16] Prince Wales Hosp, Hong Kong, Hong Kong, Peoples R China
[17] Chinese Univ Hong Kong, Hong Kong, Hong Kong, Peoples R China
[18] Mae Fah Luang Univ Hosp, Bumrungrad Int Hosp, Dept Dermatol, Bangkok, Thailand