- Correspondence to Dr Nin Bajaj, Department of Clinical Neurology, National Parkinson's Foundation of Excellence, Nottingham University Hospitals NHS Trust and University of Nottingham, Queen's Medical Centre Campus, Derby Road, Nottingham, NG7 2UH, UK;
- Received October 26, 2012
- Revised February 11, 2013
- Accepted February 18, 2013
- First published March 13, 2013.
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