1. Radiation Physics Laboratory Faculty of Medicine Sydney University Camperdown NSW 2006 Australia
2. Department of Medical Physics School of Mathematical and Physical Sciences University of Newcastle Newcastle NSW 2300 Australia
3. Radiation Oncology Centre Seventh Day Adventist Hospital Wahroonga NSW 2076 Australia
4. Department of Radiation Oncology Sir Peter MacCallum Department of Oncology University of Melbourne Melbourne Vic. 3000 Australia
5. Crown Princess Mary Cancer Care Centre Blacktown Hospital Blacktown NSW 2148 Australia
6. Department of Nuclear Medicine Nepean Hospital Nepean NSW 2750 Australia
7. Department of Radiotherapy Royal North Shore Hospital St Leonards NSW 2065 Australia