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Seng JJB, Kwan YH, Goh H, Thumboo J, Low LL.Seng JJB, et al. Among authors: low ll.BMC Public Health. 2018 May 29;18(1):665. doi: 10.1186/s12889-018-5583-6.BMC Public Health. 2018.PMID: 29843652Free PMC article.