1. Department of Otorhinolaryngology, Erasmus MC University Medical Centre, Rotterdam, The Netherlands.
2. Department of General Surgery, Erasmus MC University Medical Centre, Rotterdam, The Netherlands.
3. Department of Internal Medicine, Erasmus MC University Medical Centre, Rotterdam, The Netherlands.
4. Department of Orthopaedics, Erasmus MC University Medical Centre, Rotterdam, The Netherlands.
5. Sofradim Production, A Medtronic Company, Trévoux, France.