By Eisele R.   Schmid R.   Kinzl L.   Kramer M.   Katzmaier P.   Hartwig E.   in European Journal of Ultrasound

ISSN:0929-8266|8|3|167-175

Elsevier‎(1998)‎

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By Kramer M.   Katzmaier P.   Eisele R.   Ebert V.   Kinzl L.   Hartwig E.   in European Spine Journal

ISSN:0940-6719|10|5|414-420

Springer Publishing Company ‎(2001)‎

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