- Correspondence to Dr Joseph Jankovic, Department of Neurology, Parkinson’s Disease Center and Movement Disorders Clinic, Baylor College of Medicine, Baylor College of Medicine, Houston TX 77030, USA;
- Received August 12, 2017
- Revised October 30, 2017
- Accepted December 20, 2017
- First published January 13, 2018.
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