1. Department of Palliative Medicine, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia.
2. Department of Supportive and Palliative Medicine, and Crown Princess Mary Cancer Centre, Westmead Hospital, Sydney, New South Wales, Australia.
3. Department of Radiation Oncology, Crown Princess Mary Cancer Centre, Westmead Hospital, Sydney, New South Wales, Australia.
4. Department of Palliative Medicine, Bankstown Hospital, Sydney, New South Wales, Australia.