1. Division of Gastroenterology, Veterans Affairs Puget Sound Healthcare System and University of Washington, Seattle
2. Research and Development, Veterans Affairs Puget Sound Health Care System, Seattle, Washington
3. Division of Nephrology, Veterans Affairs Puget Sound Healthcare System and University of Washington, Seattle
4. Division of Allergy and Infectious Disease, Veterans Affairs Puget Sound Healthcare System and University of Washington, Seattle
5. Division of Pulmonary and Critical Care, Veterans Affairs Puget Sound Healthcare System and University of Washington, Seattle