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Christophi CA, Kolokotroni O, Alpert HR, Warren CW, Jones NR, Demokritou P, Connolly GN.Christophi CA, et al. Among authors: alpert hr.BMC Public Health. 2008 Jun 2;8:190. doi: 10.1186/1471-2458-8-190.BMC Public Health. 2008.PMID: 18518947Free PMC article.