[1] Hosp Ramos Mejia, Pediat Dermatol Sect, Dept Dermatol, Buenos Aires, DF, Argentina
[2] Hosp Nino Jesus, Dept Dermatol, Madrid, Spain
[3] Univ Hosp San Cecilio, Dept Dermatol, Granada, Spain
[4] Hosp Aleman, Dept Dermatol, Buenos Aires, DF, Argentina
[5] Hosp Ramos Mejia, Dept Pathol, Buenos Aires, DF, Argentina