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Submitted on: 10 June 2019.
Revised on: 22 July 2019.
Accepted on: 18 September 2019.
___________________JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE
Submitted on: 09 November 2009.
Revised on: 15 February 2010.
Accepted on: 16 March 2010.
___________________JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE
Submitted on: 15 April 2005.
Revised on: 21 June 2005.
Accepted on: 15 July 2005.
___________________JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE
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http://reply.papertrans.cn/2/185/18419/18419-26.png
Submitted on: 21 January 2022.
Revised on: 19 May 2022.
Accepted on: 07 July 2022.
___________________JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE
Submitted on: 31 January 2001.
Revised on: 23 March 2001.
Accepted on: 04 May 2001.
___________________JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE
Submitted on: 09 March 1998.
Revised on: 11 April 1998.
Accepted on: 04 June 1998.
___________________JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE
Submitted on: 31 December 1998.
Revised on: 30 March 1999.
Accepted on: 20 May 1999.
___________________JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE