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Shawkey MD, Balenger SL, Hill GE, Johnson LS, Keyser AJ, Siefferman L.Shawkey MD, et al. Among authors: hill ge.J R Soc Interface. 2006 Aug 22;3(9):527-32. doi: 10.1098/rsif.2006.0111.J R Soc Interface. 2006.PMID: 16849249Free PMC article.