Submitted on: 20 December 2004.
Revised on: 13 January 2005.
Accepted on: 22 February 2005.
___________________Annali di Igiene Medicina Preventiva e di Comunita
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Submitted on: 09 March 2021.
Revised on: 11 May 2021.
Accepted on: 27 June 2021.
___________________Annali di Igiene Medicina Preventiva e di Comunita
Submitted on: 04 February 2000.
Revised on: 02 June 2000.
Accepted on: 21 July 2000.
___________________Annali di Igiene Medicina Preventiva e di Comunita
Submitted on: 15 June 2024.
Revised on: 20 September 2024.
Accepted on: 21 October 2024.
___________________Annali di Igiene Medicina Preventiva e di Comunita
Submitted on: 03 May 2001.
Revised on: 02 June 2001.
Accepted on: 24 July 2001.
___________________Annali di Igiene Medicina Preventiva e di Comunita
Submitted on: 13 June 2021.
Revised on: 07 July 2021.
Accepted on: 31 August 2021.
___________________Annali di Igiene Medicina Preventiva e di Comunita
Submitted on: 26 August 2008.
Revised on: 08 December 2008.
Accepted on: 22 December 2008.
___________________Annali di Igiene Medicina Preventiva e di Comunita
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