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Byun SH, Min C, Park IS, Kim H, Kim SK, Park BJ, Choi HG, Hong SJ.Byun SH, et al.J Clin Med. 2020 Apr 19;9(4):1170. doi: 10.3390/jcm9041170.J Clin Med. 2020.PMID: 32325855Free PMC article.
Byun SH, Min C, Hong SJ, Choi HG, Koh DH.Byun SH, et al.Int J Environ Res Public Health. 2020 Jun 18;17(12):4387. doi: 10.3390/ijerph17124387.Int J Environ Res Public Health. 2020.PMID: 32570864Free PMC article.
Byun SH, Lee S, Kang SH, Choi HG, Hong SJ.Byun SH, et al.Int J Environ Res Public Health. 2020 Jul 20;17(14):5237. doi: 10.3390/ijerph17145237.Int J Environ Res Public Health. 2020.PMID: 32698486Free PMC article.