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Na ED, Jung I, Choi DH, Kwon H, Heo SJ, Kim HC, Kang SH, Cho H.Na ED, et al. Among authors: choi dh.Medicine (Baltimore). 2018 Sep;97(37):e12233. doi: 10.1097/MD.0000000000012233.Medicine (Baltimore). 2018.PMID: 30212954Free PMC article.
Song YG, Kwon HM, Kim JM, Hong BK, Kim DS, Huh AJ, Chang KH, Kim HY, Kang TS, Lee BK, Choi DH, Jang YS, Kim HS.Song YG, et al. Among authors: choi dh.Yonsei Med J. 2000 Jun;41(3):319-27. doi: 10.3349/ymj.2000.41.3.319.Yonsei Med J. 2000.PMID: 10957885Free article.
Jeong HJ, Cho SW, Kim HA, Lee SH, Cho JH, Choi DH, Kwon H, Cha WT, Han JE, Cha KY.Jeong HJ, et al. Among authors: choi dh.Yonsei Med J. 2004 Jun 30;45(3):479-82. doi: 10.3349/ymj.2004.45.3.479.Yonsei Med J. 2004.PMID: 15227735Free article.