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Chung JY, Ho CH, Chen YC, Chen JH, Lin HJ, Wang JJ, Hsu CC, Huang CC.Chung JY, et al.BMC Public Health. 2018 Aug 7;18(1):985. doi: 10.1186/s12889-018-5918-3.BMC Public Health. 2018.PMID: 30086726Free PMC article.