1. Department of Pathology, Toronto General Hospital, University Health Network, Toronto, ON, Canada M5G 2C4
2. Division of Cardiology, University of Toronto, Toronto, ON, Canada M5T 2S8
3. Department of Radiology, Sunnybrook Hospital and University Health Network, North York, ON, Canada M4N 3M5
4. Division of Cardiac Surgery, Peter Munk Cardiac Centre, Toronto General Hospital, Toronto, ON, Canada M5G 2C4
5. Faculty of Medicine, University of Toronto, Toronto, ON, Canada M5S 1A8