[1] Hosp Univ Puerta Hierro, Dept Dermatol, Majadahonda, Spain
[2] Univ Hosp Wurzburg, Dept Dermatol Venereol & Allergol, Wurzburg, Germany
[3] Univ Lyon, Univ Lyon 1, Inserm U1111, Ctr Int Rech Infectiol,CNRS,UMR 5308,CIRI,Ecole No, Lyon, France
[4] Hop Edouard Herriot, Dept Dermatol, Lyon, France
[5] Ctr Hosp Lyon Sud, Dept Allergol & Immunol, Pierre Benite, France
[6] Cambridge Univ Hosp, Addenbrookes Hosp, Dept Dermatol, Cambridge, England
[7] Ctr Hosp Univ Santo Antonio, Dept Dermatol, Porto, Portugal
[8] Hosp Gen Univ Gregorio Maranon, Dept Dermatol, Madrid, Spain