[1] Rhein Westfal TH RWTH Aachen Univ, Dept Orthopaed Traumatol & Reconstruct Surg, Aachen, Germany
[2] Oslo Univ Hosp, Dept Immunol, Oslo, Norway
[3] Univ Oslo, Oslo, Norway
[4] Nordland Hosp Trust, Res Lab, Bodo, Norway
[5] Univ Hosp Ulm, Inst Clin & Expt Trauma Immunol, Ulm, Germany