1. Department of Respiratory Medicine; Royal Prince Alfred Hospital; Sydney New South Wales Australia
2. Faculty of Medicine; University of Sydney; Sydney New South Wales Australia
3. Department of Respiratory Medicine; The Alfred Hospital; Melbourne Victoria Australia
4. Faculty of Medicine; Monash University; Melbourne Victoria Australia
5. Department of Radiology; Royal Prince Alfred Hospital; Sydney New South Wales Australia
6. Department of Anatomical Pathology; Royal Prince Alfred Hospital; Sydney New South Wales Australia
7. Department of Radiology; The Alfred Hospital; Melbourne Victoria Australia