1 Department of Head and Neck Surgery, Chris O'Brien Lifehouse, 119-143 Missenden Road, Camperdown, NSW 2050, Australia; Sydney School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2006, Australia. Electronic address: Emma.Charters@lh.org.au.
2 Department of Anaesthetics, Chris O'Brien Lifehouse, 119-143 Missenden Road, Camperdown, NSW 2050, Australia.
3 Department of Head and Neck Surgery, Chris O'Brien Lifehouse, 119-143 Missenden Road, Camperdown, NSW 2050, Australia; Royal Prince Alfred Institute of Academic Surgery, Sydney Local Health District, Camperdown, NSW 2050, Australia.
4 Department of Head and Neck Surgery, Chris O'Brien Lifehouse, 119-143 Missenden Road, Camperdown, NSW 2050, Australia.
5 Department of Head and Neck Surgery, Chris O'Brien Lifehouse, 119-143 Missenden Road, Camperdown, NSW 2050, Australia; Royal Prince Alfred Institute of Academic Surgery, Sydney Local Health District, Camperdown, NSW 2050, Australia; Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Anderson Stuart Building, Camperdown, NSW 2006, Australia.