1. Department of General Internal Medicine; Ghent University Hospital; Ghent Belgium
2. Department of Internal Medicine; Ghent University Hospital; Ghent Belgium
3. Department of Public Health; Ghent University Hospital; Ghent Belgium
4. Department of Business Economics; Hasselt University; Diepenbeek Belgium
5. Faculty of Medicine and Health Sciences; Ghent University Hospital; Ghent Belgium
6. Department of Emergency Medicine; Ghent University Hospital; Ghent Belgium