Submitted on: 11 April 2002.
Revised on: 28 July 2002.
Accepted on: 21 September 2002.
___________________Communicable Diseases Intelligence
Submitted on: 19 September 2016.
Revised on: 02 November 2016.
Accepted on: 18 December 2016.
___________________Communicable Diseases Intelligence
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Submitted on: 31 October 2012.
Revised on: 25 January 2013.
Accepted on: 23 March 2013.
___________________Communicable Diseases Intelligence
Submitted on: 12 November 2000.
Revised on: 08 March 2001.
Accepted on: 11 April 2001.
___________________Communicable Diseases Intelligence
Submitted on: 30 January 2005.
Revised on: 21 April 2005.
Accepted on: 26 May 2005.
___________________Communicable Diseases Intelligence
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Submitted on: 21 September 1998.
Revised on: 23 November 1998.
Accepted on: 26 December 1998.
___________________Communicable Diseases Intelligence
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Submitted on: 27 August 1999.
Revised on: 29 September 1999.
Accepted on: 13 October 1999.
___________________Communicable Diseases Intelligence