1. Department of Respiratory Medicine; Liverpool Hospital, Liverpool; Sydney New South Wales Australia
2. Macquarie University Hospital; Sydney New South Wales Australia
3. Department of Respiratory and Sleep Medicine; John Hunter Hospital; Newcastle New South Wales Australia
4. Department of Respiratory Medicine; Sir Charles Gairdner Hospital; Perth Western Australia Australia
5. School of Medicine and Pharmacology; University of Western Australia; Perth Western Australia Australia
6. Department of Respiratory Medicine; Fiona Stanley Hospital; Perth Western Australia Australia
7. Respiratory Medicine; The Alfred Hospital; Melbourne Victoria Australia
8. Department of Respiratory Medicine; Royal Brisbane and Women's Hospital; Brisbane Queensland Australia
9. The Department of Thoracic Medicine; The Royal Adelaide Hospital; Adelaide South Australia Australia
10. Department of Respiratory Medicine; Royal Melbourne Hospital; Melbourne Victoria Australia
11. Department of Medicine; University of Melbourne; Melbourne Victoria Australia
12. School of Medicine; University of Queensland; Brisbane Queensland Australia
13. Department of Respiratory Medicine; Wellington Hospital; Wellington New Zealand
14. Centre for Healthy Lungs, Hunter Medical Research Institute; University of Newcastle; Newcastle New South Wales Australia