1. Division of Infectious Diseases; Department of Internal Medicine; University of Iowa Carver College of Medicine; Iowa City Iowa
2. Iowa City VA Health Care System; Iowa City Iowa
3. Richard M. Fairbanks School of Public Health; Indiana University; Indianapolis Indiana
4. VA Health Services Research and Development Service Center for Health Information and Communication; Richard Roudebush VA Medical Center; Indianapolis Indiana
5. Regenstrief Institute; Indiana University School of Medicine; Indianapolis Indiana
6. Division of General Internal Medicine and Infectious Diseases; Department of Internal Medicine; University of Iowa Carver College of Medicine; Iowa City Iowa