- Dr G Baird, Department of Paediatric Neurology, Newcomen Centre, Guy's and St Thomas' Medical School, St Thomas St, London SE1 9RT, UK
- Accepted December 21, 2000
- First published June 1, 2001.
- Authors' correction
In this article, it was incorrectly stated that the consensus panel was convened by the National Institutes of Health. The consensus panel was convened jointly by the Chuild Neurological Cociety and the American Academy of Neurology.
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