Submitted on: 20 June 2004.
Revised on: 08 October 2004.
Accepted on: 13 November 2004.
___________________Journal of Occupational Medicine and Toxicology
http://reply.papertrans.cn/2/185/18425/18425-22.png
Submitted on: 10 June 2023.
Revised on: 02 August 2023.
Accepted on: 08 September 2023.
___________________Journal of Occupational Medicine and Toxicology
Submitted on: 07 December 2023.
Revised on: 03 February 2024.
Accepted on: 03 March 2024.
___________________Journal of Occupational Medicine and Toxicology
http://reply.papertrans.cn/2/185/18425/18425-25.png
Submitted on: 06 June 2018.
Revised on: 29 August 2018.
Accepted on: 18 September 2018.
___________________Journal of Occupational Medicine and Toxicology
http://reply.papertrans.cn/2/185/18425/18425-27.png
Submitted on: 23 November 2014.
Revised on: 13 February 2015.
Accepted on: 11 March 2015.
___________________Journal of Occupational Medicine and Toxicology
http://reply.papertrans.cn/2/185/18425/18425-29.png
http://reply.papertrans.cn/2/185/18425/18425-30.png