Centre for Data Science and Digital Health, Hamilton Health Sciences, Hamilton, ON, Canada. petchj@hhsc.ca. Population Health Research Institute, Hamilton, ON, Canada. petchj@hhsc.ca. Division of Cardiology, Department of Medicine, McMaster University, Hamilton, ON, Canada. petchj@hhsc.ca. Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada. petchj@hhsc.ca. Centre for Data Science and Digital Health, Hamilton Health Sciences, Hamilton, ON, Canada. Department of Statistical Sciences, University of Toronto, Toronto, ON, Canada. Department of Computer Science, University of Toronto, Toronto, ON, Canada. Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USA. Institute for Medical and Evaluative Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA. Vector Institute, Toronto, ON, Canada. Population Health Research Institute, Hamilton, ON, Canada. Department of Cardiology, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany. Microsoft Research, Montreal, QC, Canada. Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada. Division of Cardiology, Department of Medicine, Duke University Medical Center, Durham, NC, USA. Duke Clinical Research Institute, Duke University, Durham, NC, USA. Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, NC, USA. Department of Medical Sciences, Cardiology, Uppsala University, Uppsala, Sweden. Uppsala Clinical Research Center, Uppsala University, Uppsala, Sweden. Division of Hematology and Thromboembolism, Department of Medicine, McMaster University, Hamilton, ON, Canada. Division of Cardiology, Department of Medicine, McMaster University, Hamilton, ON, Canada.