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Submitted on: 12 March 2005.
Revised on: 30 June 2005.
Accepted on: 14 July 2005.
___________________Food and Waterborne Parasitology
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Submitted on: 12 January 2009.
Revised on: 12 April 2009.
Accepted on: 11 May 2009.
___________________Food and Waterborne Parasitology
Submitted on: 22 October 2000.
Revised on: 14 December 2000.
Accepted on: 28 January 2001.
___________________Food and Waterborne Parasitology