1. Sleep Research Group, Charles Perkins Centre and Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
2. Department of Respiratory and Sleep Medicine, Royal North Shore Hospital, Sydney, New South Wales, Australia
3. Southern ENT and Adelaide Sinus Centre, Flinders Private Hospital, Adelaide, South Australia, Australia
4. College of Medicine and Public Health, Flinders University, Adelaide, South Australia, Australia
5. Illawarra Shoalhaven Local Health District, Wollongong, New South Wales, Australia
6. Discipline of Medicine, University of Wollongong, Wollongong, New South Wales, Australia
7. Illawarra ENT Head and Neck Clinic, Wollongong, New South Wales, Australia