- Dr Satoshi Kuwabara, Department of Neurology, Chiba University School of Medicine, 1–8–1 Inohana, Chuo-ku, Chiba 260–8670, Japan. Telephone 0081 043 222 7171 extension 5414; fax 0081 043 226 2160; email
- Received November 3, 1998
- Revised March 1, 1999
- Accepted March 5, 1999
- First published August 1, 1999.
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