1. Public Health Palliative Care Unit, School of Psychology and Public Health, La Trobe University, Melbourne, VIC 3086, Australia
2. Perron Institute for Neurological and Translational Science, Perth, WA, Australia
3. Irish Hospice Foundation, Dublin, Ireland; Royal College of Surgeons in Ireland, Dublin, Ireland
4. Irish Hospice Foundation, Dublin, Ireland
5. School of Psychology, Curtin University, Perth, WA, Australia