- Dr NJ Davey, Department of Sensorimotor Systems, Division of Neuroscience and Psychological Medicine, Imperial College School of Medicine, Charing Cross Hospital, Fulham Palace Road, London W6 8RF. Telephone 0044 181 846 7284; fax 0044 181 846 7338; email
- Received October 16, 1997
- Revised February 10, 1998
- Accepted April 20, 1998
- First published November 1, 1998.
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