1. Department of ENT, Head and Neck Surgery; Antwerp University Hospital; Edegem Belgium
2. Faculty of Medicine and Health Sciences; University of Antwerp; Antwerp Belgium
3. Department of Anaesthesiology; Antwerp University Hospital; Edegem Belgium
4. Department of Scientific Coordination and Biostatistics; Antwerp University Hospital; Edegem Belgium
5. Special Care Dentistry; Antwerp University Hospital; Edegem Belgium