Submitted on: 04 August 2003.
Revised on: 30 September 2003.
Accepted on: 25 October 2003.
___________________JOURNAL OF CLINICAL EPIDEMIOLOGY
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Submitted on: 04 November 2006.
Revised on: 24 February 2007.
Accepted on: 29 March 2007.
___________________JOURNAL OF CLINICAL EPIDEMIOLOGY
Submitted on: 22 August 2014.
Revised on: 17 October 2014.
Accepted on: 03 December 2014.
___________________JOURNAL OF CLINICAL EPIDEMIOLOGY
Submitted on: 25 December 2009.
Revised on: 16 January 2010.
Accepted on: 15 February 2010.
___________________JOURNAL OF CLINICAL EPIDEMIOLOGY
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