Submitted on: 18 February 2001.
Revised on: 16 March 2001.
Accepted on: 07 April 2001.
SALUD PUBLICA DE MEXICO---INST NACIONAL SALUD PUBLICA
Submitted on: 17 July 2013.
Revised on: 04 August 2013.
Accepted on: 11 August 2013.
SALUD PUBLICA DE MEXICO---INST NACIONAL SALUD PUBLICA
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Submitted on: 09 March 2008.
Revised on: 11 April 2008.
Accepted on: 25 April 2008.
SALUD PUBLICA DE MEXICO---INST NACIONAL SALUD PUBLICA
Submitted on: 24 March 2005.
Revised on: 14 April 2005.
Accepted on: 28 April 2005.
SALUD PUBLICA DE MEXICO
Submitted on: 20 February 2008.
Revised on: 03 April 2008.
Accepted on: 16 April 2008.
SALUD PUBLICA DE MEXICO
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Submitted on: 18 May 1999.
Revised on: 21 June 1999.
Accepted on: 03 July 1999.
SALUD PUBLICA DE MEXICO
Submitted on: 04 May 2014.
Revised on: 19 May 2014.
Accepted on: 30 May 2014.
SALUD PUBLICA DE MEXICO---INST NACIONAL SALUD PUBLICA
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