Submitted on: 27 March 2006.
Revised on: 21 June 2006.
Accepted on: 15 July 2006.
___________________International Journal of Surgical Oncology
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Submitted on: 19 October 2008.
Revised on: 11 November 2008.
Accepted on: 11 December 2008.
___________________International Journal of Surgical Oncology
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