1. Verwelius 3D lab Department of Head and Neck Surgery The Netherlands Cancer Institute Antoni van Leeuwenhoek Hospital Amsterdam The Netherlands
2. Department Otolaryngology and Head and Neck Surgery Erasmus University Medical Center Rotterdam The Netherlands
3. Robotics and Mechatronics Technical Medical Centre University of Twente Enschede Netherlands
4. Department of Otorhinolaryngology, Head and Neck Surgery Maastricht University Medical Center Maastricht The Netherlands
5. Department of Otorhinolaryngology Faculty of Medicine Dr. Sardjito General Hospital Gadjah Mada University Yogyakarta Indonesia