1. Dermatology II Department of Hospital Universitario Central de Asturias; Oviedo Spain
2. Pathology Department of Hospital Universitario Araba; Álava Spain
3. Departamento de Radiodiagnóstico; Hospital Clínico Universitario Lozano Blesa; Zaragoza Spain
4. Geisel School of Medicine at Dartmouth; Hanover NH USA
5. Universidad Autónoma de Chile; Santiago Chile