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Barwood CH, Murdoch BE, Whelan BM, Lloyd D, Riek S, O' Sullivan JD, Coulthard A, Wong A.Barwood CH, et al.Eur J Neurol. 2011 Jul;18(7):935-43. doi: 10.1111/j.1468-1331.2010.03284.x. Epub 2010 Dec 7.Eur J Neurol. 2011.PMID: 21138505Clinical Trial.