[1] Univ Wollongong, Wollongong, NSW, Australia
[2] Illawarra ENT Head & Neck Clin, 8-10 Victoria St, Wollongong, NSW 2500, Australia
[3] Wollongong Hosp, Dept Otolaryngol Head & Neck Surg, Wollongong, NSW, Australia
[4] Hollywood Med Ctr, Perth, WA, Australia
[5] Royal Perth Hosp, Dept Otolaryngol Head & Neck Surg, Perth, WA, Australia
[6] Flinders Univ S Australia, Coll Med & Publ Hlth, Adelaide Inst Sleep Hlth, Adelaide, SA, Australia
[7] Southern Adelaide Local Hlth Network, Resp & Sleep Serv, Adelaide, SA, Australia
[8] Monash Hlth, Monash Med Ctr, Monash Lung & Sleep, Melbourne, Vic, Australia
[9] Sch Clin Sci, Melbourne, Vic, Australia
[10] Royal Melbourne Hosp, 300 Grattan St Corner Royal Parade, Melbourne, Vic 3050, Australia
[11] Peter MacCallum Canc Ctr, Melbourne, Vic, Australia