Submitted on: 14 April 2000.
Revised on: 10 May 2000.
Accepted on: 30 May 2000.
Lancet Regional Health-Western Pacific
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Submitted on: 11 July 2013.
Revised on: 08 August 2013.
Accepted on: 24 August 2013.
Lancet Regional Health-Western Pacific
Submitted on: 27 November 2006.
Revised on: 05 December 2006.
Accepted on: 15 December 2006.
Lancet Regional Health-Western Pacific
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Submitted on: 05 February 2007.
Revised on: 11 March 2007.
Accepted on: 24 March 2007.
Lancet Regional Health-Western Pacific
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