[1] Univ Sydney, Kolling Inst, Inst Bone & Joint Res, Sydney, NSW 2006, Australia
[2] Univ Sydney, Dept Rheumatol, Royal N Shore Hosp, Sydney, NSW 2006, Australia
[3] Univ Calif Los Angeles, David Geffen Sch Med, Div Rheumatol & Immunol, Dept Med, Los Angeles, CA 90095 USA
[4] Monash Univ, Alfred Hosp, Sch Publ Hlth & Prevent Med, Melbourne, Vic 3004, Australia
[5] Boston Univ, Sch Med, Quantitat Imaging Ctr, Dept Radiol, Boston, MA 02118 USA
[6] Hosp Coracao HCor & Teleimagem, Dept Radiol, Sao Paulo, SP, Brazil
[7] Harvard Univ, Sch Med, Brigham & Womens Hosp, Dept Radiol, Sao Paulo, Brazil
[8] Paracelsus Med Univ Salzburg & Nuremberg, Inst Anat, Salzburg, Austria
[9] Chondrometrics GmbH, Ainring, Germany
[10] Univ Wisconsin, Dept Radiol, Sch Med & Publ Hlth, Madison, WI 53706 USA
[11] UCSF, Dept Radiol & Biomed Imaging, San Francisco, CA USA
[12] Univ Montreal Hosp Res Ctr CRCHUM, Osteoarthrit Res Unit, Montreal, PQ, Canada
[13] BioClinica, Newtown, PA USA
[14] Penn State Univ, Dept Radiol, Hershey, PA USA
[15] Penn State Univ, Dept Orthopaed Surg, Hershey, PA USA
[16] Amer British Cowdray Med Ctr, Dept Radiol, Mexico City, DF, Mexico
[17] Spire Sci Inc, Boca Raton, FL USA
[18] Univ Erlangen Nurnberg, Dept Radiol, D-91054 Erlangen, Germany
[19] Qmetr Technol, Rochester, NY USA
[20] Stanford Univ, Dept Radiol, Stanford, CA 94305 USA
[21] Stanford Univ, Dept Bioengn, Stanford, CA 94305 USA
[22] Stanford Univ, Dept Orthopaed Surg, Stanford, CA 94305 USA