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Shim JH, Yoo HM, Lee HH, Kim JG, Jeon HM, Song KY, Park CH.Shim JH, et al. Among authors: yoo hm.Surg Endosc. 2011 Oct;25(10):3338-44. doi: 10.1007/s00464-011-1722-1. Epub 2011 May 2.Surg Endosc. 2011.PMID: 21533967