[1] Univ Wollongong, Ctr Hlth Serv Dev, Wollongong, NSW 2522, Australia
[2] Flinders Univ S Australia, Dept Palliat & Support Serv, Adelaide, SA 5001, Australia
[3] Curtin Univ Technol, Western Australian Ctr Canc & Palliat Care, Perth, WA 6845, Australia
[4] Queensland Univ Technol, Inst Hlth & Biomed Innovat, Brisbane, Qld 4059, Australia