1. Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA;
2. Department of Educational Development and Research, School of Health Professions Education, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, the Netherlands;
3. Department of Medicine, University of Toronto, Toronto, Canada;
4. Wilson Centre for Research in Education, Faculty of Medicine, University of Toronto, Toronto, Canada