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Oh SA, Chung EK, Han ER, Woo YJ, Kevin D.Oh SA, et al. Among authors: chung ek.Korean J Med Educ. 2016 Mar;28(1):29-34. doi: 10.3946/kjme.2016.7. Epub 2016 Jan 27.Korean J Med Educ. 2016.PMID: 26838566Free PMC article.
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