Department of Burns, Plastic and Maxillofacial Surgery, Royal North Shore Hospital, St Leonards, NSW 2065, Australia. Department of Burns, Plastic and Maxillofacial Surgery, Royal North Shore Hospital, St Leonards, NSW 2065, Australia; Northern Clinical School, University of Sydney, Australia. Electronic address: varun.harish1@gmail.com. Department of Haematology, Royal North Shore Hospital, St Leonards, NSW 2065, Australia; Faculty of Medicine and Health, University of Sydney, Camperdown, NSW 2006, Australia.