1 Department of Population Health Sciences, University of Utah, Salt Lake City, Utah.
2 Department of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota.
3 Division of General Internal Medicine and Geriatrics, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
4 Department of Medicine, US Department of Veterans Affairs, Nashville, Tennessee.
5 Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee.
6 Department of Knowledge and Evaluation Research Unit, Mayo Clinic, Rochester, Minnesota.