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Giuseppe Filardo, Elizaveta Kon*, Alessandro Di Martino, Berardo Di Matteo, Maria L Merli, Annarita Cenacchi, Pier M Fornasari and Maurilio Marcacci
* Corresponding author: Elizaveta Kon e.kon@biomec.ior.it
BMC Musculoskeletal Disorders 2012, 13:229 doi:10.1186/1471-2474-13-229