[1] Univ Med Ctr Utrecht, Rheumatol & Clin Immunol, Utrecht, Netherlands
[2] Dynam Metr Ltd NA, Codicote, England
[3] Leiden Univ, Med Ctr, Dept Rheumatol, Leiden, Netherlands
[4] Leiden Univ, Clin Epidemiol, Med Ctr, Leiden, Netherlands
[5] Univ A Coruna, INIBIC,Dept Fisioterapia & Med, Grp Invest Reumatol GIR,Ctr Invest CICA, Complejo Hosp Univ A Coruna,SERGAS,Serv Reumatol, La Coruna, Spain
[6] Diakonhjemmet Hosp, Ctr Treatment Rheumat & Musculoskeletal Dis REMED, Oslo, Norway
[7] St Antoine Hosp, AP HP, Dept Rheumatol, Paris, France
[8] Sorbonne Univ, INSERM, Paris, France
[9] Boston Univ, Sch Med, Quantitat Imaging Ctr, Dept Radiol, Boston, MA USA
[10] Univ Klinikum Erlangen, Erlangen, Germany
[11] Friedrich Alexander Univ Erlangen Nurnberg FAU, Erlangen, Germany
[12] Paracelsus Med Univ Salzburg & Nuremberg, Inst Anat & Cell Biol, Dept Imaging & Funct Musculoskeletal Res, Salzburg, Austria
[13] Paracelsus Med Univ Salzburg & Nuremberg, Ludwig Boltzmann Inst Arthrit & Rehabil, Salzburg, Austria
[14] Chondrometr GmbH NA, Freilassing, Germany