1. IMPACCT, Faculty of Health, University of Technology Sydney, Ultimo, New South Wales, Australia.
2. Australian national Palliative Care Clinical Studies Collaborative, Faculty of Health, University of Technology Sydney, Ultimo, New South Wales, Australia.
3. Flinders University, Palliative and Supportive Services, RePaDD, Bedford Park, South Australia, Australia.
4. Flinders University, Palliative and Supportive Services, Bedford Park, South Australia, Australia.
5. Cancer Symptom Trials, Faculty of Health, University of Technology Sydney, Ultimo, New South Wales, Australia.
6. Wolfson Palliative Care Research Centre, University of Hull, Hull, United Kingdom.
7. Division of Respiratory Medicine & Allergology, Department of Clinical Sciences, Lund University, Lund, Sweden.