1. Heart and Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, United States
2. Department of Health Policy, Quality and Informatics Program, Michael E. DeBakey Veterans Affairs Medical Center Health Services Research and Development Center for Innovations, Section of Cardiovascular Research, Department of Medicine, Baylor College of Medicine, Houston, TX, United States
3. Westmead Applied Research Centre, Faculty of Medicine and Health, University of Sydney, Department of Cardiology, Westmead Hospital, The George Institute, Sydney, Australia