- Correspondence to: Dr K G Silbernagel Lundberg Laboratory of Orthopaedic Research, Deptartment of Orthopaedics, Sahlgrenska University Hospital, Göteborg University, Gröna Stråket 12, 413 45 Göteborg, Sweden;
- Accepted December 11, 2006
- First published January 29, 2007.
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