1. Assistant Professor of Anesthesia and Critical Care, University of Chicago.
2. Instructor of Cardiac Surgery, University of Chicago.
3. Assistant Professor of Internal Medicine, Division of Cardiology, University of Chicago.
4. Medical Student, University of Chicago.
5. Fellow, Department of Cardiology, University of Minnesota.
6. Professor and Chairman, Department of Anesthesia and Critical Care, University of Chicago.
7. Professor of Surgery, Chief Division of Cardiac Surgery, University of Chicago.