1. Department of Dermatology Hospital Clínico Universitario Lozano Blesa Zaragoza Spain
2. Department of Pathology Hospital Infantil Universitario Niño Jesús Madrid Spain
3. Department of Pathology Hospital Clínico Universitario Lozano Blesa Zaragoza Spain
4. Department of Dermatology Hospital Infantil Universitario Niño Jesús Madrid Spain