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Submitted on: 23 December 2008.
Revised on: 25 February 2009.
Accepted on: 11 March 2009.
___________________International Journal of Clinical Oncology
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Submitted on: 12 June 2012.
Revised on: 26 August 2012.
Accepted on: 19 September 2012.
___________________International Journal of Clinical Oncology
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