1. Veterans Affairs Health Services Research and Development Center for Clinical Management Research, Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, MI
2. University of Michigan, Ann Arbor, MI
3. University of North Carolina Gillings School of Global Public Health, Chapel Hill, NC
4. Medical University of South Carolina, Ralph H. Johnson Veterans Affairs Medical Center, Charleston, SC
5. Duke University, Durham Veterans Affairs Healthcare System, Durham, NC
6. Case Western Reserve University, Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH
7. University of Michigan School of Public Health, Ann Arbor, MI