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Pringsheim T, Lang A, Kurlan R, Pearce M, Sandor P.Pringsheim T, et al.Dev Med Child Neurol. 2009 Jun;51(6):468-72. doi: 10.1111/j.1469-8749.2008.03168.x. Epub 2008 Oct 24.Dev Med Child Neurol. 2009.PMID: 19018838Free article.
St Germaine-Smith C, Metcalfe A, Pringsheim T, Roberts JI, Beck CA, Hemmelgarn BR, McChesney J, Quan H, Jette N.St Germaine-Smith C, et al.Neurology. 2012 Sep 4;79(10):1049-55. doi: 10.1212/WNL.0b013e3182684707. Epub 2012 Aug 22.Neurology. 2012.PMID: 22914826Free PMC article.Review.