[1] Univ Sydney, Sch Social & Polit Sci, Sydney Ctr Hlth Soc, Camperdown, NSW 2006, Australia
[2] Univ Vienna, Dept Polit Sci, Vienna, Austria
[3] UNSW Sydney, Discipline Paediat & Child Hlth, Sch Clin Med, UNSW Med & Hlth, Randwick Clin Campus, Sydney, NSW, Australia
[4] Sydney Childrens Hosp, Kids Canc Ctr, Behav Sci Unit, Sydney, NSW, Australia
[5] Duke Univ, Duke Canc Inst, Durham, NC USA
[6] Univ Sydney, Northern Clin Sch, St Leonards, NSW, Australia
[7] Royal North Shore Hosp, Dept Med Oncol, St Leonards, NSW, Australia
[8] Royal Brisbane & Womens Hosp, Dept Med Oncol, Herston, Qld, Australia
[9] Univ Queensland, Fac Med, St Lucia, Qld, Australia