1. Veterans Rural Health Resource Center‐Iowa City, VA Office of Rural Health, and Center for Access and Delivery Research and Evaluation (CADRE) at the Iowa City VA Healthcare System Iowa City Iowa USA
2. Department of Internal Medicine, Division of Pulmonary, Critical Care, and Occupational Medicine University of Iowa Roy J. and Lucille A. Carver College of Medicine Iowa City Iowa USA
3. Department of Internal Medicine, Division of General Internal Medicine University of Iowa Roy J. and Lucille A. Carver College of Medicine Iowa City Iowa USA