1. Department of Research in Education, Faculty of Medicine VU University Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands;
2. Department of Medicine and Center for Faculty Educators, University of California, School of Medicine, San Francisco, CA, USA;
3. Department of Intensive Care Medicine, Maastricht University Medical Center, Maastricht, The Netherlands;
4. School of Health Professions Education, Maastricht University, Maastricht, The Netherlands