O'Sullivan, Eoin P.1; Shaunak, Sandip1; Henderson, Leslie1; Hawken, Malcolm1; Crawford, Trevor J.1; Kennard, Christopher1,2
1Department of Clinical Neuroscience, Charing Cross and Westminster Medical School, Fulham Palace Road, London W6 8RF, UK
2Corresponding Author: Christopher Kennard
ACKNOWLEDGEMENTS: This work was supported by the Wellcome Trust.
Received 18 December 1996; accepted 23 January 1997