[1] Curtin Univ, Curtin Med Sch, Perth, WA, Australia
[2] Sir Charles Gairdner Hosp, Dept Resp Med, Perth, WA, Australia
[3] Curtin Univ, Inst Resp Hlth, Perth, WA, Australia
[4] Austin Hlth, Dept Resp & Sleep Med, Melbourne, Vic, Australia
[5] Univ Melbourne, Fac Med Dent & Hlth Sci, Melbourne, Vic, Australia
[6] St Vincents Hosp, Dept Resp Med, Sydney, NSW, Australia
[7] Univ NSW, Kinghorn Canc Ctr, Sydney, NSW, Australia
[8] Peter MacCallum Canc Ctr, Dept Radiat Oncol, Melbourne, Vic, Australia
[9] Monash Univ, Sch Publ Hlth & Prevent Med, Melbourne, Vic, Australia
[10] Prince Charles Hosp, Dept Thorac Med, Brisbane, Qld, Australia
[11] Univ Queensland, Thorac Res Ctr, Brisbane, Qld, Australia
[12] Univ Coll London Hosp, Resp Med, London, England
[13] UCL, UCL Div Med, Resp Med, London, England
[14] Monash Univ, Dept Med, Melbourne, Vic, Australia
[15] Alfred Hosp, Dept Resp Med, Melbourne, Vic, Australia