1. Department of Cardiology, The Prince Charles Hospital, Rode Road, Brisbane, Queensland, Australia
2. School of Medicine and Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia
3. Aurora Cardiovascular and Thoracic Service Line, Aurora Healthcare, University of Wisconsin School of Medicine and Public Health, 2801 W. Kinnickinnic River Parkway, Suite 880, Milwaukee, WI, USA
4. School of Medicine, University of Queensland, Brisbane, Queensland, Australia