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Chang BV, Hsu FY, Liao HY.Chang BV, et al.J Environ Sci Health B. 2014;49(6):449-55. doi: 10.1080/03601234.2014.894784.J Environ Sci Health B. 2014.PMID: 24762183
Fan CH, Yang CW, Chang BV.Fan CH, et al. Among authors: chang bv.Environ Technol. 2019 Jan;40(2):210-218. doi: 10.1080/09593330.2017.1384510. Epub 2017 Oct 10.Environ Technol. 2019.PMID: 28942703
Chang BV, Fan SN, Tsai YC, Chung YL, Tu PX, Yang CW.Chang BV, et al.Sci Total Environ. 2018 Sep 1;634:922-933. doi: 10.1016/j.scitotenv.2018.03.366. Epub 2018 Apr 11.Sci Total Environ. 2018.PMID: 29660886