1. Department of Otolaryngology, Head and Neck Surgery, Wollongong Hospital, Wollongong, New South Wales, Australia
2. Department of Otorhinolaryngology, New Territories West Cluster, Hospital Authority, Hong Kong
3. Illawarra Sleep Medicine Centre, Wollongong, New South Wales, Australia
4. Riverina Respiratory and Sleep Centre, Wagga Wagga, New South Wales, Australia
5. University of Wollongong Graduate School of Medicine, Wollongong, New South Wales, Australia