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Cheon SM, Ha MS, Park MJ, Kim JW.Cheon SM, et al.Parkinsonism Relat Disord. 2008;14(4):286-90. doi: 10.1016/j.parkreldis.2007.09.002. Epub 2007 Nov 26.Parkinsonism Relat Disord. 2008.PMID: 18042421
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Park KW, Kim HS, Cheon SM, Cha JK, Kim SH, Kim JW.Park KW, et al. Among authors: cheon sm.J Clin Neurol. 2011 Mar;7(1):19-24. doi: 10.3988/jcn.2011.7.1.19. Epub 2011 Mar 31.J Clin Neurol. 2011.PMID: 21519522Free PMC article.
Kim HS, Cheon SM, Seo JW, Ryu HJ, Park KW, Kim JW.Kim HS, et al. Among authors: cheon sm.J Neurol Sci. 2013 Jan 15;324(1-2):70-3. doi: 10.1016/j.jns.2012.10.004. Epub 2012 Oct 26.J Neurol Sci. 2013.PMID: 23102851