[1] MVZ Zentrum Histol Zytol & Mol Diagnost, D-54296 Trier, Germany
[2] Katharinen Hosp, Klinikum Stuttgart, Inst Pathol, Stuttgart, Germany
[3] Vivantes Netzwerk Berlin, Auguste Viktoria Klinikum, Klin Spez Orthoped Chirurg & Unfallchirurg, Berlin, Germany
[4] Zeisigwaldkliniken Bethanien, Zentrum Spezial & Wechselendoprothet & Chirurg In, Chemnitz, Germany
[5] Charite Univ Med Berlin, Zentrum Muskuloskelettale Chirurg, Berlin, Germany
[6] Univ Klinikum Schleswig Holstein, Klin Orthopedie, Kiel, Germany
[7] DRK Klin, Baden, Switzerland
[8] LMU, Klin & Poliklin Dermatol & Allergol, Munich, Germany
[9] Otto Wagner Spital, Pathol Bakteriol Inst, Vienna, Austria
[10] HELIOS ENDO Klin, Hamburg, Germany
[11] Univ Spital Basel, Knochentumor Referenzzentrum, Basel, Switzerland
[12] Univ Spital Basel, Inst Pathol, Basel, Switzerland
[13] Paracelsus Kliniken Deutschland Gmbh, Osnabruck, Germany
[14] Hosp Special Surg, New York, NY 10021 USA
[15] Univ Klinikum Hamburg Eppendorf, Inst Pathol, Hamburg, Germany
[16] Klinikum Kassel, Inst Pathol, Kassel, Germany
[17] Univ Klinikum Hamburg Eppendorf, Zentrum Operat Med, Klin Orthopadie, Hamburg, Germany