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Sebastian Felix Baumbach, Mariette Fasser, Hans Polzer, Michael Sieb, Markus Regauer, Wolf Mutschler, Matthias Schieker* and Michael Blauth
* Corresponding author: Matthias Schieker Matthias.Schieker@med.uni-muenchen.de
BMC Musculoskeletal Disorders 2013, 14:22 doi:10.1186/1471-2474-14-22