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Fong Yan A, Sinclair PJ, Hiller C, Wegener C, Smith RM.Fong Yan A, et al. Among authors: sinclair pj.Gait Posture. 2013 Jun;38(2):175-86. doi: 10.1016/j.gaitpost.2012.11.017. Epub 2012 Dec 11.Gait Posture. 2013.PMID: 23245643Review.