Submitted on: 06 November 2010.
Revised on: 23 February 2011.
Accepted on: 08 April 2011.
___________________JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE
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Submitted on: 03 September 2006.
Revised on: 31 October 2006.
Accepted on: 06 December 2006.
___________________JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE
Submitted on: 10 February 2024.
Revised on: 27 May 2024.
Accepted on: 23 June 2024.
___________________JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE