Submitted on: 04 January 2000.
Revised on: 04 April 2000.
Accepted on: 20 May 2000.
___________________Journal of Oral Health and Oral Epidemiology
Submitted on: 09 November 2015.
Revised on: 08 January 2016.
Accepted on: 06 March 2016.
___________________Journal of Oral Health and Oral Epidemiology
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Submitted on: 07 June 2013.
Revised on: 28 September 2013.
Accepted on: 24 October 2013.
___________________Journal of Oral Health and Oral Epidemiology
Submitted on: 10 October 2012.
Revised on: 08 January 2013.
Accepted on: 23 February 2013.
___________________Journal of Oral Health and Oral Epidemiology
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Submitted on: 12 May 2021.
Revised on: 20 August 2021.
Accepted on: 31 August 2021.
___________________Journal of Oral Health and Oral Epidemiology
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