- Correspondence to Dr José Fidel Baizabal-Carvallo, Department of Neurology, Parkinson's Disease Center and Movement Disorders Clinic, Baylor College of Medicine, The Smith Tower, Suite 1801, 6550 Fannin, Houston, TX 77030, USA;
- Received August 12, 2014
- Revised November 20, 2014
- Accepted November 21, 2014
- First published December 15, 2014.
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