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Fabrizio CS, Hirschmann MR, Lam TH, Cheung T, Pang I, Chan S, Stewart SM.Fabrizio CS, et al.BMC Public Health. 2012 Dec 31;12:1129. doi: 10.1186/1471-2458-12-1129.BMC Public Health. 2012.PMID: 23276067Free PMC article.Clinical Trial.