- Dr Joseph Jankovic, Department of Neurology, Parkinson’s Disease Center, Movement Disorders Clinic, Baylor College of Medicine, 6550 Fannin No 1801, Houston, Texas 77030, USA. Telephone 001 713 798 5998; fax 001 713 798 6808; email
- Received November 11, 1999
- Revised May 20, 1999
- Accepted May 28, 1999
- First published November 1, 1999.
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