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Yoon JH, Yoo CI, Ahn YS.Yoon JH, et al. Among authors: ahn ys.Scand J Work Environ Health. 2019 Jul 1;45(4):396-401. doi: 10.5271/sjweh.3802. Epub 2019 Mar 24.Scand J Work Environ Health. 2019.PMID: 30904927Free article.
Yoon JH, Ko CM, Ahn YS, Park KS, Choe KH, Yoo KJ, Kim KH, Kim SS, Cho BK.Yoon JH, et al. Among authors: ahn ys.Yonsei Med J. 1994 Dec;35(4):411-9. doi: 10.3349/ymj.1994.35.4.411.Yonsei Med J. 1994.PMID: 7871845Free article.
Ahn YS, Won JU, Park RM.Ahn YS, et al.J Korean Med Sci. 2010 Dec;25(12):1733-41. doi: 10.3346/jkms.2010.25.12.1733. Epub 2010 Nov 24.J Korean Med Sci. 2010.PMID: 21165287Free PMC article.
Ahn YS, Jeong KS, Kim KS.Ahn YS, et al.Am J Ind Med. 2012 Sep;55(9):768-78. doi: 10.1002/ajim.22068. Epub 2012 May 24.Am J Ind Med. 2012.PMID: 22628010