1. Section of Pulmonary and Critical Care Medicine, University of Chicago, Chicago, Illinois
2. Section of General Internal Medicine, University of Chicago, Chicago, Illinois
3. MacLean Center for Clinical Medical Ethics, University of Chicago, Chicago, Illinois
4. Center for the Study of Race, Politics, and Culture, University of Chicago, Chicago, Illinois
5. Division of Pulmonary, Allergy and Critical Care Medicine, Duke University, Durham, North Carolina