1. Peter Munk Cardiac Centre, University Health Network, 190 Elizabeth Street, Toronto, ON M5G 2C4, Canada
2. Ted Rogers Centre for Heart Research, 661 University Avenue, Toronto, ON M5G 1X8, Canada
3. University of Toronto, 27 King's College Cir, Toronto, ON M5S 1K1, Canada
4. Brigham and Women’s Hospital, Division of Cardiovascular Medicine, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
5. Instituto do Coracao (InCor), Faculdade de Medicina FMUSP, Universidade de Sao Paulo, 44, Doutor Enéas Carvalho de Aguiar Avenue, São Paulo, SP 05403-900, Brazil
6. Royal Brompton & Harefield Hospital, Imperial College, 77 Wimpole Street, London W1G 9RU, UK
7. Northwestern Memorial Hospital, Northwestern University Feinberg School of Medicine, 251 E Huron, Chicago, IL 60611, USA
8. Division of Cardiac Surgery, St Michael’s Hospital, University of Toronto, 30 Bond St, Toronto, ON M5B 1W8, Canada
9. Brigham and Women’s Hospital, Center for Cardiovascular Disease Prevention, Harvard Medical School, 900 Commonwealth Avenue, Boston, MA 02215, USA