1. Department of Medicine, McMaster University , 20 Copeland Avenue, Suite C3-117, Hamilton, ON L8L 0A3 , Canada
2. Duke University School of Medicine , Durham, NC , USA
3. Ahmanson-UCLA Cardiomyopathy Center, University of California at Los Angeles School of Medicine , Los Angeles, CA , USA
4. Department of Health Research Methods, Evidence, and Impact , Hamilton, ON , Canada
5. Research Institute of St. Joseph’s , Hamilton, ON , Canada