1. Cardiology Division, Department of Medicine, Massachusetts General Hospital, Boston, MA, US
2. Department of Medicine, Columbia University Irving Medical Center, New York, NY, US
3. Department of Cardiovascular Medicine, Heart, Vascular, and Thoracic Institute, Kaufman Center for Heart Failure Treatment and Recovery, Cleveland Clinic, Cleveland, OH, US
4. Department of Medicine, Emory University School of Medicine, Atlanta, GA, US
5. Department of Medicine, Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada; Population Health Research Institute and Research Institute of St Joseph’s, Hamilton, Ontario, Canada
6. Saint Luke’s Mid America Heart Institute, Kansas City, MO, US; University of Missouri-Kansas City, Kansas City, MO, US