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Submitted on: 24 October 2002.
Revised on: 21 December 2002.
Accepted on: 30 January 2003.
___________________JOURNAL OF CLINICAL NEUROPHYSIOLOGY
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Submitted on: 14 June 2005.
Revised on: 21 August 2005.
Accepted on: 16 October 2005.
___________________JOURNAL OF CLINICAL NEUROPHYSIOLOGY
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