1. Department of Medicine Yale University School of Medicine New Haven Connecticut
2. Department of Cardiology University of Miami/Jackson Memorial Hospital Miami Florida
3. Hofmann Heart and Vascular Institute Saint Francis Hospital and Medical Center Hartford Connecticut
4. Harvey Cushing/John Hay Whitney Medical Library Yale University New Haven Connecticut
5. Center for Outcomes Research and Evaluation Yale‐New Haven Hospital New Haven Connecticut
6. Section of Cardiovascular Medicine Yale University School of Medicine New Haven Connecticut
7. Division of Cardiovascular Medicine University of Nebraska Medical Center Omaha Nebraska