1. School of Clinical Medicine, The University of Queensland, Brisbane, Australia (Y.P., L.N., K.H., A.A., I.R.).
2. Department of Cardiology, The Prince Charles Hospital, Brisbane, QLD, Australia (Y.P., L.N., I.R.).
3. Cardiovascular Centre, E Hospital, Hanoi, Vietnam (L.N.).
4. QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia (K.H.).
5. Internal Medicine Services, The Prince Charles Hospital, Brisbane, QLD, Australia (A.A., K.C.).