- Correspondence to Vitaliano Francesco Muzii, Assistant Professor of Neurosurgery, Department of Neurological, Neurosurgical and Behavioural Sciences, University of Siena, Policlinico “S. Maria alle Scotte”, V.le Bracci, 16, 53100 Siena, Italy;
- Received 11 December 2008
- Revised 7 March 2009
- Accepted 1 May 2009
- Published in print 1 August 2010.
- Published online 3 August 2010.
- Published first 18 June 2010.
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