Affiliation: | 1. Department of Dermatology, Complejo Hospitalario Insular Materno Infantil de Gran Canaria, Las Palmas, Spain;2. Department of Dermatology, Hospital Universitari Sant Joan de Reus, Tarragona, Spain;3. Department of Pathology, Complejo Hospitalario Insular Materno Infantil de Gran Canaria, Las Palmas, Spain |