1. Department of Dermatology Escuela de Medicina Pontificia Universidad Católica de Chile Santiago Chile
2. Dermatology Service Department of Medicine Memorial Sloan Kettering Cancer Center New York NY USA
3. Dermatology Clinic Seoul Korea
4. Melanoma and Skin Cancer Unit Escuela de MedicinaPontificia Universidad Católica de Chile Santiago Chile
5. Department of Dermatology University of AthensAndreas Syggros Hospital of Skin and Venereal Diseases Athens Greece