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Chung HJ, Hwang HB, Lee NY.Chung HJ, et al. Among authors: hwang hb.Biomed Res Int. 2015;2015:827516. doi: 10.1155/2015/827516. Epub 2015 Oct 18.Biomed Res Int. 2015.PMID: 26557702Free PMC article.Review.