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Paton JS, Thomason K, Trimble K, Metcalfe JE, Marsden J.Paton JS, et al. Among authors: metcalfe je.J Am Podiatr Med Assoc. 2013 Jan-Feb;103(1):36-42. doi: 10.7547/1030036.J Am Podiatr Med Assoc. 2013.PMID: 23328851Clinical Trial.