1. T. Subramanianis a resident physician, University of Chicago Medical Centera fellow, MacLean Center for Clinical Medical Ethics, Chicago, Illinois.
2. L. Pocivavsekis assistant professor of surgery, Section of Vascular Surgery, Department of Surgery, University of Chicago Medicine, Chicago, Illinois.
3. J.C. Alverdyis professor of surgery and executive vice chair, Department of Surgery, University of Chicago Medicine, Chicago, Illinois.