1. Department of Dermatology, Escuela de Medicina Pontificia Universidad Católica de Chile Santiago Chile
2. Melanoma and Skin Cancer Unit, Escuela de Medicina Pontificia Universidad Católica de Chile Santiago Chile
3. Department of Dermatology University of Modena and Reggio Emilia Modena Italy
4. Azienda Unità Sanitaria Locale – IRCCS di Reggio Emilia Centro Oncologico ad Alta Tecnologia Diagnostica‐Dermatologia Reggio Emilia Italy