Clyde W Yancy1,2, Gregg C Fonarow3,4. 1. Division of Cardiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois. 2. Deputy Editor, JAMA Cardiology. 3. Ahmanson-UCLA Cardiomyopathy Center, David Geffen School of Medicine, University of California, Los Angeles. 4. Associate Editor for Health Care Quality and Guidelines, JAMA Cardiology.