1. Department of Cardiology Middlemore Hospital Otahuhu Auckland New Zealand
2. Department of Cardiology Waikato Hospital Hamilton New Zealand
3. Section of Epidemiology and Biostatistics, School of Population Health University of Auckland Auckland New Zealand
4. Department of Medicine University of Auckland New Zealand
5. Department of Cardiology Christchurch Hospital Christchurch New Zealand
6. University of Otago Christchurch New Zealand
7. Waikato Clinical School, Faculty of Medical and Health Sciences University of Auckland
8. Department of Cardiology Auckland City Hospital Auckland New Zealand
9. Department of Cardiology Wellington Hospital Wellington New Zealand
10. Department of Cardiology Tauranga Hospital Tauranga New Zealand