[1] Univ Ulm, Dept Orthoped, Div Biochem Joint & Connect Tissue Dis, D-89081 Ulm, Germany
[2] Ulm Univ, Inst Epidemiol & Med Biometry, Helmholtzstr 22, D-89081 Ulm, Germany
[3] German Canc Res Ctr, Div Clin Epidemiol & Aging Res, D-69120 Heidelberg, Germany
[4] Heidelberg Univ, Network Aging Res, D-69115 Heidelberg, Germany
[5] Tech Univ Dresden, Univ Ctr Orthopaed & Traumatol, Univ Med Carl Gustav Carus Dresden, D-01069 Dresden, Germany