Submitted on: 09 January 2013.
Revised on: 14 March 2013.
Accepted on: 10 May 2013.
___________________Infectious Disease Modelling---KEAI PUBLISHING LTD
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Submitted on: 03 December 2014.
Revised on: 21 January 2015.
Accepted on: 07 March 2015.
___________________Infectious Disease Modelling---KEAI PUBLISHING LTD
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Submitted on: 23 February 2009.
Revised on: 31 May 2009.
Accepted on: 14 June 2009.
___________________Infectious Disease Modelling---KEAI PUBLISHING LTD
Submitted on: 10 May 1998.
Revised on: 14 July 1998.
Accepted on: 07 August 1998.
___________________Infectious Disease Modelling---KEAI PUBLISHING LTD
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Submitted on: 04 August 2018.
Revised on: 09 September 2018.
Accepted on: 25 September 2018.
___________________Infectious Disease Modelling---KEAI PUBLISHING LTD
Submitted on: 17 October 2011.
Revised on: 01 January 2012.
Accepted on: 08 February 2012.
___________________Infectious Disease Modelling---KEAI PUBLISHING LTD