1. Department of Medicine, University of Melbourne, Fitzroy, Victoria, Australia.
2. Palliative Care Service, St Vincent's Hospital Melbourne, Fitzroy, Victoria, Australia.
3. Palliative Care Service, Peter MacCallum Cancer Centre, Melbourne, Fitzroy, Victoria, Australia.
4. Palliative Care Service, Royal Melbourne Hospital, Parkville, Victoria, Australia.
5. Discipline of Pharmacology, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, South Australia, Australia.
6. Florey Institute of Neuroscience and Mental Health, University of Melbourne, Fitzroy, Victoria, Australia.
7. Department Intensive Care Medicine, St. Olavs University Hospital, Trondheim, Norway.
8. Personalised Oncology Division, Walter Eliza Hall Institute, University of Melbourne, Fitzroy, Victoria, Australia.