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Brown DW, Riley L, Butchart A, Meddings DR, Kann L, Harvey AP.Brown DW, et al. Among authors: meddings dr.Bull World Health Organ. 2009 Jun;87(6):447-55. doi: 10.2471/blt.07.047423.Bull World Health Organ. 2009.PMID: 19565123Free PMC article.