1. Head and Neck Cancer Service; Crown Princess Mary Cancer Centre; Sydney New South Wales Australia
2. The University of Sydney; Sydney New South Wales Australia
3. Sydney Head and Neck Institute; Chris O'Brien Lifehouse; Camperdown New South Wales Australia
4. Department of Nuclear Medicine; Westmead Hospital; Sydney New South Wales Australia
5. Institute of Clinical Pathology and Medical Research; Westmead Hospital; Sydney New South Wales Australia