1. Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Belgium
2. ENT, Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium
3. Multidisciplinary Sleep Disorders Centre, Antwerp University Hospital, Edegem, Belgium
4. Special Dentistry Care, Antwerp University Hospital, Edegem, Belgium
5. Clinical Trial Centre (CTC), CRC Antwerp, Antwerp University Hospital, Edegem, Antwerp, Belgium
6. Department of Pulmonology, Antwerp University Hospital, Edegem, Antwerp, Belgium