1 Sydney Head and Neck Cancer Institute, Chris O'Brien Lifehouse, Camperdown, NSW, Australia. Electronic address: rajith.mendis@lh.org.au.
2 Sydney Head and Neck Cancer Institute, Chris O'Brien Lifehouse, Camperdown, NSW, Australia.
3 Sydney Head and Neck Cancer Institute, Chris O'Brien Lifehouse, Camperdown, NSW, Australia; Central Clinical School, Faculty of Medicine and Health Sciences, The University of Sydney, NSW, Australia.
4 Sydney Head and Neck Cancer Institute, Chris O'Brien Lifehouse, Camperdown, NSW, Australia; Central Clinical School, Faculty of Medicine and Health Sciences, The University of Sydney, NSW, Australia; The Royal Prince Alfred Institute of Academic Surgery, Sydney Local Health District, Camperdown, NSW, Australia.