1 Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia.
2 Department of Dermatology, Westmead Hospital, Westmead, New South Wales, Australia.
3 Department of Tissue Pathology and Diagnostic Oncology, Institute of Clinical Pathology and Medical Research (ICPMR), Westmead Hospital, NSW Health Pathology, Westmead, New South Wales, Australia.
4 Department of Medical Oncology, Westmead Hospital, Westmead, New South Wales, Australia.
5 Melanoma Institute Australia, Wollstonecraft, New South Wales, Australia.