1. Division of General Internal Medicine, Johns Hopkins Bayview Medical Center, Baltimore, MD, USA
2. Faculty of Medicine and Health Sciences, Richard and Sylvia Cruess Chair in Medical Education, McGill University, Montreal, Canada
3. Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
4. Department of Medicine, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
5. Division of Community Internal Medicine, Geriatrics and Palliative Care, Mayo Clinic, Rochester, MN, USA
6. Department of Family and Community Medicine, Wilson Centre for Research in Education, University Health Network & University of Toronto, Toronto, Canada
7. Department of Family and Community Medicine, Faculty of Medicine, University of Toronto, Toronto, Canada