1. Department of Radiation Oncology Coffs Harbour Base Hospital Coffs Harbour NSW Australia
2. Institute of Medical Physics School of Physics University of Sydney Sydney NSW Australia
3. Department of Radiation Oncology Calvary Mater Hospital Newcastle Newcastle NSW Australia
4. School of Medical Radiation Sciences University of Newcastle Newcastle NSW Australia
5. Department of Radiation Oncology Blacktown Cancer & Haematology Centre Blacktown NSW Australia