1. Department of Medicine, Duke University , Durham, North Carolina , USA
2. Trent Center for Bioethics, Humanities, & History of Medicine, Duke University , Durham, North Carolina , USA
3. Department of Internal Medicine, University of Michigan , Ann Arbor, Michigan , USA
4. Department of Health Management and Policy, University of Michigan , Ann Arbor, Michigan , USA
5. Department of Epidemiology, University of Michigan , Ann Arbor, Michigan , USA
6. Department of History, University of Michigan , Ann Arbor, Michigan , USA