1. Department of Medicine, University of Washington and Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA
2. Department of Pharmacy, Harborview Medical Center, and School of Pharmacy, University of Washington, Seattle, WA, USA
3. Division of Pulmonary and Critical Care Medicine, Department of Medicine, Harborview Medical Center and School of Medicine, University of Washington, Seattle, WA, USA
4. Department of Nursing, Harborview Medical Center, Seattle, WA, USA
5. Division of Allergy & Infectious Diseases, Department of Medicine, Harborview Medical Center and School of Medicine, University of Washington, Seattle, WA, USA