Affiliation: | 1. Department of Dermatology, Hospital Clínico Universitario de Salamanca, Salamanca, Spain;2. Department of Dermatology, Hospital Clínico Universitario “Lozano Blesa”, Zaragoza, Spain;3. Department of Dermatology, Hospital Universitario Infantil Ni?o Jesús, Madrid, Spain;4. Department of Pathology, Hospital Universitario Infantil Ni?o Jesús, Madrid, Spain |