1. Center for Education Development and Research in Health Professions (CEDAR), University of Groningen, University Medical Center Groningen, Groningen, The Netherlands;
2. Center for Dentistry and Oral Hygiene, Department of Public and Individual Oral Health, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands;
3. Department of Cardiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands