- Correspondence to: Dr Magnus Tisell Hydrocephalus Research Unit, Institute of Clinical Neuroscience, Sahlgrenska University Hospital, Göteborg University, 413 45 Göteborg, Sweden;
- Received 22 February 2004
- Accepted 10 October 2004
- Revised 25 September 2004
- Published in print 1 July 2005.
- Published online 16 June 2005.
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