1. Medical Therapy Unit (Thalassaemia Service), Southern Health, Clayton, Australia;
2. Nossal Institute for Global Health, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Carlton, Australia;
3. Medical Research Council Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom; and
4. Iron Metabolism Laboratory, Queensland Institute of Medical Research, Brisbane, Queensland, Australia