1. Academic Department of Sleep & Ventilation, Heart of England NHS Foundation Trust; University of Birmingham; Birmingham UK
2. College of Medical and Dental Sciences; Queen Elizabeth Hospital Research Laboratories; University of Birmingham; Birmingham UK
3. Department of Respiratory Medicine; University North Staffordshire Hospital; Coventry UK
4. School of Mathematics; University of Birmingham; Birmingham UK
5. Department of Respiratory Medicine; University Hospitals Coventry and Warwickshire; Coventry UK
6. Department of Thoracic and Sleep Medicine; St Vincent's Hospital Darlinghurst and Clinical School; University of New South Wales; Sydney New South Wales Australia
7. Centre for Integrated Research and Understanding Sleep (CIRUS); Woolcock Institute of Medical Research; University of Sydney; Sydney New South Wales Australia