1. Paracelsus Medical University, Salzburg, and Krankenhaus der Barmherzigen Schwestern; Linz Austria
2. Paracelsus Medical University, Salzburg, Austria, and Chondrometrics; Ainring Germany
3. Boston University School of Medicine and Boston Imaging Core Lab; Boston Massachusetts
4. Royal North Shore Hospital and Institute of Bone and Joint Research, Kolling Institute, and University of Sydney; Sydney New South Wales Australia
5. Paracelsus Medical University; Salzburg Austria
6. Sisters of Charity Hospital; Linz Austria