1. Hospital Santa Caterina, Girona, Spain
2. Department of Oncodermatology, Institut Universitaire du Cancer Toulouse Oncopole, Toulouse, France
3. Department of Pathology, Institut Universitaire du Cancer Toulouse Oncopole, Toulouse, France
4. Department of Medical Oncology, Institut Universitaire du Cancer Toulouse Oncopole, Toulouse, France
5. Department of Oral Medicine, Institut Universitaire du Cancer Toulouse Oncopole, Toulouse, France
6. Cedars-Sinai Medical Center, Samuel Oschin Comprehensive Cancer Institute, Los Angeles, California, USA