1 Department of Dermatology, Maastricht University Medical Center, Maastricht, The Netherlands.
2 Department of Pathology, Maastricht University Medical Center, Maastricht, The Netherlands.
3 Department of Otorhinolaryngology, Head and Neck Surgery, Maastricht University Medical Center, Maastricht, The Netherlands; GROW Research Institute for Oncology and Developmental Biology, Maastricht, The Netherlands.
4 Department of Plastic and Reconstructive Surgery, Maastricht University Medical Center, Maastricht, The Netherlands.
5 Department of Radiotherapy, Maastro Clinic, Maastricht, The Netherlands.
6 Department of Dermatology, Maastricht University Medical Center, Maastricht, The Netherlands; GROW Research Institute for Oncology and Developmental Biology, Maastricht, The Netherlands. Electronic address: [email protected].