http://reply.papertrans.cn/2/136/13552/13552-21.png
Submitted on: 30 July 2014.
Revised on: 30 October 2014.
Accepted on: 11 November 2014.
___________________INTERNATIONAL JOURNAL OF HYGIENE AND ENVIRONMENTAL HEALTH
Submitted on: 23 May 2013.
Revised on: 29 July 2013.
Accepted on: 04 September 2013.
___________________INTERNATIONAL JOURNAL OF HYGIENE AND ENVIRONMENTAL HEALTH
Submitted on: 12 January 2012.
Revised on: 25 April 2012.
Accepted on: 22 May 2012.
___________________INTERNATIONAL JOURNAL OF HYGIENE AND ENVIRONMENTAL HEALTH
http://reply.papertrans.cn/2/136/13552/13552-25.png
Submitted on: 14 December 2011.
Revised on: 24 March 2012.
Accepted on: 18 April 2012.
___________________INTERNATIONAL JOURNAL OF HYGIENE AND ENVIRONMENTAL HEALTH
Submitted on: 30 October 2017.
Revised on: 14 January 2018.
Accepted on: 06 March 2018.
___________________INTERNATIONAL JOURNAL OF HYGIENE AND ENVIRONMENTAL HEALTH
http://reply.papertrans.cn/2/136/13552/13552-28.png
http://reply.papertrans.cn/2/136/13552/13552-29.png
Submitted on: 14 August 2011.
Revised on: 09 October 2011.
Accepted on: 23 October 2011.
___________________INTERNATIONAL JOURNAL OF HYGIENE AND ENVIRONMENTAL HEALTH