| Date | Event | Description |
|---|---|---|
| 30 March 2014 | Amended | Incorporated Feb 2014 Reviewers suggestions |
| 28 July 2013 | Amended | Peer Referee's recommendations (received May 2013) added. Authors' comments will be sent separately to Movement Disorders Group. |
| 22 March 2013 | Amended | amended and reviewer's recommendations added. |
| 23 May 2011 | Amended | Converted to new review format. |
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