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Submitted on: 07 September 1998.
Revised on: 15 November 1998.
Accepted on: 30 December 1998.
___________________Journal of Neurosurgery-Pediatrics
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Submitted on: 31 March 2006.
Revised on: 23 April 2006.
Accepted on: 06 June 2006.
___________________Journal of Neurosurgery-Pediatrics
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Submitted on: 06 August 2011.
Revised on: 03 December 2011.
Accepted on: 26 January 2012.
___________________Journal of Neurosurgery-Pediatrics
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Submitted on: 31 May 2023.
Revised on: 22 July 2023.
Accepted on: 11 September 2023.
___________________Journal of Neurosurgery-Pediatrics