- Correspondence to Dr S D J Makin, Division of Clinical Neurosciences, University of Edinburgh, Bramwell Dott Building, Western General Hospital, Crewe Road, Edinburgh EH4 2XU, UK;
- Received July 23, 2012
- Revised January 22, 2013
- Accepted January 28, 2013
- First published March 1, 2013.
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