[1] Univ Bologna, Dept Expt Diagnost & Specialty Med, Dermatol Unit, Bologna, Italy
[2] Amer Univ Beirut, Med Ctr, Dept Dermatol, Beirut, Lebanon
[3] Univ Libre Bruxelles, St Pierre Univ Hosp, Brussels, Belgium
[4] Univ Libre Bruxelles, Brugmann Univ Hosp, Brussels, Belgium
[5] Univ Libre Bruxelles, Childrens Univ Hosp, Brussels, Belgium