Submitted on: 22 February 2003.
Revised on: 21 March 2003.
Accepted on: 15 April 2003.
Salud Colectiva
Submitted on: 21 June 2022.
Revised on: 20 July 2022.
Accepted on: 10 August 2022.
Salud Colectiva---UNIVERSIDAD NACIONAL DE LANUS
Submitted on: 19 April 2020.
Revised on: 30 April 2020.
Accepted on: 19 May 2020.
Salud Colectiva---UNIVERSIDAD NACIONAL DE LANUS
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Submitted on: 19 June 2012.
Revised on: 18 July 2012.
Accepted on: 05 August 2012.
Salud Colectiva---UNIVERSIDAD NACIONAL DE LANUS
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