1. Office of Specialty Care Services, Patient Care Services, Department of Veterans Health Administration, Washington, DC
2. Louis Stokes Cleveland VA Medical Center, Cleveland, OH
3. Case Western Reserve University School of Medicine, Cleveland, OH
4. Ann Arbor VAMC, Ann Arbor, MI
5. Department of Gastroenterology, University of Michigan Health System, Ann Arbor, MI
6. Division of Nursing and Health Systems, School of Nursing, University of Michigan, Ann Arbor, MI