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Submitted on: 28 June 2003.
Revised on: 31 July 2003.
Accepted on: 14 August 2003.
___________________Journal of Pharmacy & Pharmacognosy Research
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Submitted on: 16 May 2001.
Revised on: 09 June 2001.
Accepted on: 14 July 2001.
___________________Journal of Pharmacy & Pharmacognosy Research
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Submitted on: 06 December 2003.
Revised on: 27 January 2004.
Accepted on: 13 March 2004.
___________________Journal of Pharmacy & Pharmacognosy Research