- Correspondence to Christopher Harmston, Department of Colorectal Surgery, University Hospital Coventry and Warwickshire NHS Trust, Clifford Bridge Road, Coventry, Warwickshire CV2 2DX, UK;
- Received December 31, 2011
- Revised November 1, 2012
- Accepted November 27, 2012
- First published January 2, 2013.
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