Submitted on: 27 February 2001.
Revised on: 05 April 2001.
Accepted on: 03 May 2001.
Sri Lankan Journal of Anaesthesiology
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Submitted on: 14 February 2002.
Revised on: 27 March 2002.
Accepted on: 05 April 2002.
Sri Lankan Journal of Anaesthesiology
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Submitted on: 01 August 2014.
Revised on: 14 September 2014.
Accepted on: 24 September 2014.
Sri Lankan Journal of Anaesthesiology
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Submitted on: 14 February 2005.
Revised on: 24 February 2005.
Accepted on: 18 March 2005.
Sri Lankan Journal of Anaesthesiology
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