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Submitted on: 27 April 2005.
Revised on: 20 June 2005.
Accepted on: 25 July 2005.
___________________AMERICAN JOURNAL OF PHYSIOLOGY-CELL PHYSIOLOGY
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Submitted on: 19 March 2002.
Revised on: 08 July 2002.
Accepted on: 27 July 2002.
___________________AMERICAN JOURNAL OF PHYSIOLOGY-CELL PHYSIOLOGY
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Submitted on: 29 October 2007.
Revised on: 31 January 2008.
Accepted on: 07 March 2008.
___________________AMERICAN JOURNAL OF PHYSIOLOGY-CELL PHYSIOLOGY