1. Academic Center for General Practice, KU Leuven, Leuven, Belgium;
2. School of Health Professions Education, Maastricht University, Maastricht, the Netherlands;
3. Center for Instructional Psychology and Technology, KU Leuven, Leuven, Belgium;
4. Center for General Practice, University of Antwerp, Antwerp, Belgium;
5. Department of Public Health and Primary Care, Ghent University, Ghent, Belgium;
6. Department of Clinical Sciences, Faculty of Medicine & Pharmacy, VUB, Brussels, Belgium