1. Department of Haematology, The Canberra Hospital, Canberra, Australia
2. Australian National University Medical School, The Canberra Hospital, Canberra, Australia
3. Department of Anatomical Pathology, The Canberra Hospital, Canberra, Australia
4. Department of Epidemiology, The Canberra Hospital, Canberra, Australia
5. National Capital Private Hospital, Canberra, Australia