1. From the School of Physics and School of Medicine and Pharmacology, University of Western Australia, Perth, Australia; Department of Gastroenterology and Hepatology, Sir Charles Gairdner Hospital, Perth, Australia; Thalassemia Research Center, Mahidol University, Bangkok, Thailand; SKG Radiology, St John of God Hospital, Perth, Australia; and Department of Haematology, Prince of Wales Hospital, Sydney, Australia.