1. Department of Cardiology, Gosford Hospital, NSW, Australia (T.J.F., E.R., E.C.).
2. Faculty of Health and Medicine, The University of Newcastle, Callaghan, NSW, Australia (T.J.F.).
3. British Heart Foundation (BHF) Cardiovascular Research Centre, The Institute of Cardiovascular & Medical Sciences (ICAMS), University of Glasgow, United Kingdom (T.J.F.).