1. Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, New York
2. Schulich Heart Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
3. Division of Cardiothoracic Surgery, Yale University School of Medicine, New Haven, Connecticut
4. Samuel J. Wood Library and C.V. Starr Biomedical Information Centre, Weill Cornell Medicine, New York, New York
5. BHS Department of Cardiothoracic Surgery, West Roxbury, Massachusetts
6. Department of Cardiac Surgery, Harefield Hospital, London, United Kingdom
7. Ottawa Methods Centre, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
8. Department of Thoracic Surgery, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio
9. Department of Cardiovascular Surgery, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio
10. Department of Cardiac Surgery, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
11. Division of Cardiovascular Medicine, Brigham and Women’s Hospital, Boston, Massachusetts
12. Department of Surgery, Columbia University Medical Center, New York, New York