[1] CIBER BBN, Madrid, Spain
[2] Univ Complutense Madrid, Inst Invest Sanitaria Hosp, Dpto Quim Inorgan & Bioinorg, Madrid, Spain
[3] Univ Erlangen Nurnberg, Inst Biomat, D-91058 Erlangen, Germany
[4] RMS Fundat, CH-2544 Bettlach, Switzerland
[5] Univ Autonoma Barcelona, Dept Internal Med, Hosp Mar IMIM, E-08193 Barcelona, Spain
[6] Univ Duisburg Essen, Inorgan Chem & Ctr Nanointegrat Duisburg Essen Ce, D-45117 Essen, Germany
[7] Univ Autonoma Madrid, Hosp La Paz, IdiPAZ, Serv Cirugia Ortoped & Traumatol, Madrid 28046, Spain
[8] Univ Zaragoza, Dept Surg, E-50009 Zaragoza, Spain
[9] Miguel Servet Univ Hosp, Dept Orthopaed Surg & Traumatol, Zaragoza 50009, Spain
[10] Inst Bioengn Catalonia IBEC, Barcelona 08028, Spain
[11] Univ Hosp Getafe, Div Geriatr Med, Madrid, Spain