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Submitted on: 06 June 2005.
Revised on: 27 June 2005.
Accepted on: 07 July 2005.
PARASITOLOGY RESEARCH---SPRINGER
Submitted on: 08 September 2003.
Revised on: 18 October 2003.
Accepted on: 24 October 2003.
PARASITOLOGY RESEARCH
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Submitted on: 05 April 2008.
Revised on: 03 May 2008.
Accepted on: 23 May 2008.
PARASITOLOGY RESEARCH---SPRINGER