1. Department of Head and Neck Oncology and Surgery; The Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital Amsterdam; Amsterdam The Netherlands
2. Department of Oral and Maxillofacial Surgery; Academic Medical Hospital; Amsterdam The Netherlands
3. Department of Phonetic Sciences; University of Amsterdam; Amsterdam The Netherlands
4. Department of Surgical Oncology; The Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital Amsterdam; Amsterdam The Netherlands