1. Institute of Bone and Joint Research; Kolling Institute; Sydney Medical School; University of Sydney; Sydney New South Wales Australia
2. School of Medicine; University of Sydney; Sydney New South Wales Australia
3. Quantitative Imaging Center; Department of Radiology; Boston University School of Medicine; Boston Massachusetts USA
4. Department of Radiology; University of Erlangen-Nuremberg; Erlangen Germany
5. Rheumatology Department; Royal North Shore Hospital; Sydney New South Wales Australia