Submitted on: 29 September 2000.
Revised on: 22 January 2001.
Accepted on: 14 February 2001.
___________________JOURNAL OF ENVIRONMENTAL HEALTH
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Submitted on: 28 August 1999.
Revised on: 19 October 1999.
Accepted on: 11 December 1999.
___________________JOURNAL OF ENVIRONMENTAL HEALTH
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Submitted on: 09 November 2022.
Revised on: 21 January 2023.
Accepted on: 09 February 2023.
___________________JOURNAL OF ENVIRONMENTAL HEALTH
Submitted on: 25 June 2017.
Revised on: 21 September 2017.
Accepted on: 12 October 2017.
___________________JOURNAL OF ENVIRONMENTAL HEALTH
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