1. Department of Research; Netherlands Comprehensive Cancer Organisation (IKNL); Utrecht The Netherlands
2. Department of Epidemiology; University of Groningen, University Medical Center Groningen; Groningen The Netherlands
3. Department of Oral and Maxillofacial Surgery; Radboud University Medical Center, Nijmegen; Nijmegen The Netherlands
4. Department for Health Evidence; Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen; Nijmegen The Netherlands
5. Department of Oral and Maxillofacial Surgery; University of Groningen, University Medical Center Groningen; Groningen The Netherlands