1. Center for Chronic Disease Outcomes Research, Minneapolis VA Healthcare System, Minneapolis, MN, USA
2. Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Medical School, University of Minnesota, Minneapolis, MN, USA
3. Center to Improve Veteran Involvement in Care, VA Portland Health Care System, Portland, OR, USA
4. Center for Healthcare Organization and Implementation Research, Bedford VA Medical Center, Bedford, MA, USA
5. Division of Pulmonary and Critical Care, Department of Medicine, School of Medicine, Boston University, Boston, MA, USA
6. Division of Pulmonary & Critical Care Medicine, Department of Medicine, Oregon Health Sciences University, Portland, OR, USA