1. From the Center for Comprehensive Access and Delivery Research and Evaluation, Iowa City Veterans Affairs Medical Center, Iowa City, IA (G.E.R., M.V.-S.); Division of General Internal Medicine, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA (G.E.R., M.V.-S.); and Institute for Clinical and Translational Science, University of Iowa, Iowa City, IA (G.E.R.).