1. Department of Medical Education and Administration and Department of Medicine, Vanderbilt University School of Medicine Nashville, TN, USA;
2. Department of Anesthesiology, University Medical Center Utrecht, the Netherlands;
3. Center for Research and Development of Education, University Medical Center Utrecht, the Netherlands;
4. Center for Research, Innovation and Scholarship in Medical Education, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston, TX, USA