1. Department of Applied Physics University of Eastern Finland Kuopio Finland
2. Department of Biomedical Engineering Lund University Lund Sweden
3. Department of Radiology and Biomedical Imaging University of California, San Francisco San Francisco California USA
4. Department of Biomedical Engineering, Lerner Research Institute Program of Advanced Musculoskeletal Imaging Cleveland Ohio USA
5. Departments of Biological Engineering, Electrical Engineering and Computer Science and Mechanical Engineering Massachusetts Institute of Technology Cambridge Massachusetts USA