1 is Professor and Associate Dean for Education Research, George Washington University School of Medicine and Health Sciences, Washington, DC, USA.
2 is Professor of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, USA.
3 is the Herbert T. Abelson Professor of Medicine and Dean for Medical Education, Pritzker School of Medicine, University of Chicago, Chicago, Illinois, USA; and.
4 is Professor of Medicine and Director, Division of General Internal Medicine and Clinical Innovation, New York University Grossman School of Medicine, New York, New York, USA.