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Lee MH, Song JH, Lee DI, Ahn HS, Park JW, Cha YD.Lee MH, et al. Among authors: ahn hs.Korean J Pain. 2013 Jan;26(1):76-9. doi: 10.3344/kjp.2013.26.1.76. Epub 2013 Jan 4.Korean J Pain. 2013.PMID: 23342213Free PMC article.
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