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Submitted on: 25 July 2010.
Revised on: 29 September 2010.
Accepted on: 20 November 2010.
___________________Genes and Nutrition---BMC
Submitted on: 06 November 1999.
Revised on: 23 January 2000.
Accepted on: 09 March 2000.
___________________Genes and Nutrition---BMC
Submitted on: 14 October 2003.
Revised on: 14 November 2003.
Accepted on: 28 November 2003.
___________________Genes and Nutrition---BMC
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