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Submitted on: 26 November 2004.
Revised on: 18 February 2005.
Accepted on: 13 April 2005.
___________________ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
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Submitted on: 04 March 2004.
Revised on: 19 April 2004.
Accepted on: 24 May 2004.
___________________ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
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Submitted on: 22 May 1998.
Revised on: 17 September 1998.
Accepted on: 29 October 1998.
___________________ENVIRONMENTAL GEOCHEMISTRY AND HEALTH