- Correspondence to Dr R Fekete, Parkinson's Disease Center and Movement Disorders Clinic, Department of Neurology, Baylor College of Medicine, The Smith Tower, Suite 1801, 6550 Fannin St Houston, TX 77030, USA;
- Received 27 June 2011
- Revised 19 August 2011
- Accepted 31 August 2011
- Published online 6 January 2012.
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