[1] Paracelsus Med Univ, Salzburg, Austria
[2] Paracelsus Med Univ, Nurnberg, Germany
[3] Chondrometr GmbH, Ainring, Germany
[4] Univ Sydney, Sydney, NSW 2006, Australia
[5] Univ Calif San Francisco, San Francisco, CA 94143 USA
[6] Univ Arizona, Arthrit Ctr, Tucson, AZ USA
[7] Northwestern Univ, Feinberg Sch Med, Chicago, IL 60611 USA
[8] Boston Univ, Boston, MA 02215 USA
[9] Boston Imaging Core Lab, Boston, MA USA
[10] Univ Erlangen Nurnberg, D-91054 Erlangen, Germany