1. Minneapolis VA Evidence Synthesis Program, Center for Care Delivery and Outcomes Research, and University of Minnesota School of Medicine, Minneapolis, Minnesota (T.J.W.)
2. Minneapolis VA Section of Infectious Diseases and University of Minnesota School of Medicine, Minneapolis, Minnesota (A.S.K.)
3. Minneapolis VA Evidence Synthesis Program, Center for Care Delivery and Outcomes Research, Minneapolis, Minnesota (R.M., N.G.)
4. VA Portland Health Care System and Oregon Health & Science University School of Medicine, Portland, Oregon (A.O.)
5. Minneapolis VA Evidence Synthesis Program, Center for Care Delivery and Outcomes Research and University of Minnesota School of Medicine, Minneapolis, Minnesota (W.D.)