1. Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
2. Otolaryngology and Head and Neck Surgery, Antwerp University Hospital, Antwerp, Belgium
3. Department of Cardiology, Delta (CHIREC) Hospital, Brussels, Belgium
4. Pfizer Biopharmaceuticals, Brussels, Belgium
5. Department of Cardiology, Antwerp University Hospital, Antwerp, Belgium