1. Center for Comprehensive Access and Delivery Research and Evaluation (CADRE), Iowa City VA Health Care System, Iowa City, Iowa2Division of Pulmonary, Critical Care, and Occupational Medicine, Department of Internal Medicine, University of Iowa Hospitals a
2. Center for Comprehensive Access and Delivery Research and Evaluation (CADRE), Iowa City VA Health Care System, Iowa City, Iowa3Division of General Internal Medicine, Department of Internal Medicine, University of Iowa Hospitals and Clinics, Iowa City
3. Center for Comprehensive Access and Delivery Research and Evaluation (CADRE), Iowa City VA Health Care System, Iowa City, Iowa
4. Division of Pulmonary and Critical Care Medicine, Minneapolis VA Health Care System, Minneapolis, Minnesota
5. Division of General Internal Medicine, Department of Internal Medicine, University of Iowa Hospitals and Clinics, Iowa City5Department of Internal Medicine, University of Toronto, Toronto, Ontario, Canada6Division of General Internal Medicine, Mt Sinai/Un