1. A. Hazrais assistant professor of medicine, Section of Infectious Diseases and Global Health, University of Chicago Medicine, Chicago, Illinois.
2. K. Stanfordis assistant professor of medicine, Section of Emergency Medicine, University of Chicago Medicine, Chicago, Illinois.
3. J. Schneideris professor of medicine, Section of Infectious Diseases and Global Health, University of Chicago Medicine, Chicago, Illinois.
4. A. Davisis professor of medicine, Section of General Internal Medicine, University of Chicago Medicine, Chicago, Illinois.