1. Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.
2. Department of Orthopedics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.
3. Department of Otorhinolaryngology, Head and Neck Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.
4. Metronix-Sofradim Production, Trévoux, France.