- Correspondence to Dr Sarah Louise Mackie, NIHR-Leeds Musculoskeletal Biomedical Research Unit, Leeds Institute of Molecular Medicine, Wellcome Trust Brenner Building, St James's University Hospital, Leeds LS9 7TF, UK;
- Received June 7, 2012
- Revised November 12, 2012
- Accepted December 2, 2012
- First published December 22, 2012.
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