Submitted on: 19 November 2000.
Revised on: 20 February 2001.
Accepted on: 18 April 2001.
___________________Journal of Clinical Neurology---KOREAN NEUROLOGICAL ASSOC
Submitted on: 19 May 2006.
Revised on: 01 July 2006.
Accepted on: 29 August 2006.
___________________Journal of Clinical Neurology---KOREAN NEUROLOGICAL ASSOC
Submitted on: 17 November 2003.
Revised on: 03 February 2004.
Accepted on: 31 March 2004.
___________________Journal of Clinical Neurology---KOREAN NEUROLOGICAL ASSOC
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