1. Assistant Professor of Medicine and Director, Post-Discharge Clinic, University of Chicago Medicine, Chicago, Illinois, USA.
2. Professor and Chief, Hospitalist Section, University of Chicago Medicine, Chicago, Illinois, USA.
3. Research Assistant, University of Chicago, Chicago, Illinois, USA.
4. Director, Ambulatory care, Department of Medicine, Psychiatry, Pain, and Anesthesia, University of Chicago Medicine, Chicago, Illinois, USA.
5. Associate Professor, Chief Transformational Officer, University of Chicago Medicine, Chicago, Illinois, USA.