Submitted on: 16 March 2018.
Revised on: 23 May 2018.
Accepted on: 20 June 2018.
___________________AMERICAN JOURNAL OF PREVENTIVE MEDICINE
Submitted on: 01 October 2002.
Revised on: 06 December 2002.
Accepted on: 21 December 2002.
___________________AMERICAN JOURNAL OF PREVENTIVE MEDICINE
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Submitted on: 15 July 2015.
Revised on: 16 October 2015.
Accepted on: 29 November 2015.
___________________AMERICAN JOURNAL OF PREVENTIVE MEDICINE
Submitted on: 09 September 2003.
Revised on: 07 January 2004.
Accepted on: 20 January 2004.
___________________AMERICAN JOURNAL OF PREVENTIVE MEDICINE
Submitted on: 05 September 2008.
Revised on: 18 October 2008.
Accepted on: 23 November 2008.
___________________AMERICAN JOURNAL OF PREVENTIVE MEDICINE