1. Department of Medicine, University of Colorado-Anschutz Medical Campus, Aurora;
2. Harvard T.H. Chan School of Public Health, Boston, Massachusetts;
3. Department of Internal Medicine, Ohio State University, Columbus;
4. Department of Medicine, MetroHealth and Louis Stokes Cleveland Veterans Administration Medical Center, Ohio;
5. Department of Neurosciences, University of California–San Diego; and
6. Department of Medicine,Northwestern University Feinberg School of Medicine, Chicago, Illinois