1. Division of Cardiovascular Diseases, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City
2. Center for Access and Delivery Research and Evaluation, Iowa City Veterans Affairs Medical Center, Iowa City, Iowa
3. Center for Clinical Management Research, Ann Arbor Veterans Affairs Medical Center, Ann Arbor, Michigan
4. Department of Internal Medicine, University of Michigan Medical School, Ann Arbor
5. Saint Luke’s Mid America Heart Institute and the University of Missouri, Kansas City