1. Department of Head and Neck Oncology and Surgery, Netherlands Cancer Institute–Antoni van Leeuwenhoek Hospital, Amsterdam
2. Center for Facial Plastic and Reconstructive Surgery, Department of Otolaryngology–Head and Neck Surgery, Diakonessen Hospital, Utrecht, the Netherlands
3. Department of Dermatology, Netherlands Cancer Institute–Antoni van Leeuwenhoek Hospital, Amsterdam
4. Department of Biometrics, Netherlands Cancer Institute–Antoni van Leeuwenhoek Hospital, Amsterdam