Submitted on: 02 December 2009.
Revised on: 26 January 2010.
Accepted on: 09 March 2010.
___________________Clinical Epidemiology and Global Health
Submitted on: 16 October 2001.
Revised on: 29 December 2001.
Accepted on: 20 January 2002.
___________________Clinical Epidemiology and Global Health
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Submitted on: 08 March 2011.
Revised on: 15 April 2011.
Accepted on: 09 June 2011.
___________________Clinical Epidemiology and Global Health
Submitted on: 19 December 2010.
Revised on: 22 March 2011.
Accepted on: 20 May 2011.
___________________Clinical Epidemiology and Global Health
Submitted on: 11 June 2005.
Revised on: 08 October 2005.
Accepted on: 10 November 2005.
___________________Clinical Epidemiology and Global Health
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Submitted on: 10 March 2010.
Revised on: 12 May 2010.
Accepted on: 09 June 2010.
___________________Clinical Epidemiology and Global Health
Submitted on: 24 December 2023.
Revised on: 13 February 2024.
Accepted on: 03 March 2024.
___________________Clinical Epidemiology and Global Health