Submitted on: 15 November 1998.
Revised on: 29 December 1998.
Accepted on: 11 February 1999.
___________________INDIAN JOURNAL OF MEDICAL RESEARCH
Submitted on: 13 June 2009.
Revised on: 16 July 2009.
Accepted on: 22 August 2009.
___________________INDIAN JOURNAL OF MEDICAL RESEARCH
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Submitted on: 31 May 2005.
Revised on: 12 July 2005.
Accepted on: 16 August 2005.
___________________INDIAN JOURNAL OF MEDICAL RESEARCH
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