1. Cancer Research Division; Cancer Council NSW; New South Wales Australia
2. School of Public Health; Sydney Medical School, University of Sydney; New South Wales Australia
3. Midland Physician Service; St John of God Public and Private Hospitals Midland; Western Australia Australia
4. Department Health Sciences; Brock University; Ontario Canada
5. Department of Thoracic Medicine; The Prince Charles Hospital; Queensland Australia
6. Curtin Medical School, Faculty of Health Sciences, Curtin University; Western Australia Australia
7. Fiona Stanley Hospital; Respiratory Medicine Department, University of Western Australia; Western Australia Australia
8. National Centre for Epidemiology and Population Health, Research School of Population Health; Australian National University; Australian Capital Territory Australia
9. Prince of Wales Clinical School, UNSW; New South Wales Australia