1. Department of Otorhinolaryngology - Head & Neck Surgery, University Medical Center Groningen; University of Groningen; Groningen the Netherlands
2. Department of Nuclear Medicine and Molecular Imaging; University of Groningen, University Medical Center Groningen; Groningen the Netherlands
3. Department of Nuclear Medicine, Tygerberg Hospital; Stellenbosch University; Stellenbosch South-Africa
4. Department of Otolaryngology - Head and Neck Surgery; VU University Medical Center; Amsterdam the Netherlands
5. Department of Otolaryngology; NoordWest Ziekenhuisgroep; Alkmaar the Netherlands
6. Department of Radiology and Nuclear Medicine; VU University Medical Center; Amsterdam the Netherlands
7. Department of Head and Neck Surgical Oncology; UMC Utrecht Cancer Center, University Medical Center Utrecht; the Netherlands
8. Department of Epidemiology; University Medical Center Groningen, University of Groningen; Groningen the Netherlands
9. Department of Research; Netherlands Comprehensive Cancer Organization (IKNL); Utrecht the Netherlands