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Submitted on: 28 March 2008.
Revised on: 05 May 2008.
Accepted on: 18 May 2008.
___________________JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY
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Submitted on: 13 April 2003.
Revised on: 22 May 2003.
Accepted on: 10 July 2003.
___________________JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY
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Submitted on: 16 August 1999.
Revised on: 29 November 1999.
Accepted on: 17 December 1999.
___________________JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY
Submitted on: 28 January 2006.
Revised on: 18 February 2006.
Accepted on: 03 March 2006.
___________________JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY