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Submitted on: 23 September 2000.
Revised on: 13 November 2000.
Accepted on: 11 January 2001.
___________________Environmental Epidemiology---LIPPINCOTT WILLIAMS & WILKINS
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Submitted on: 25 October 2008.
Revised on: 04 January 2009.
Accepted on: 01 March 2009.
___________________Environmental Epidemiology---LIPPINCOTT WILLIAMS & WILKINS
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Submitted on: 08 February 2023.
Revised on: 03 April 2023.
Accepted on: 14 April 2023.
___________________Environmental Epidemiology---LIPPINCOTT WILLIAMS & WILKINS
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