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Salifu M, Ackaah W.Salifu M, et al. Among authors: ackaah w.Int J Inj Contr Saf Promot. 2012;19(4):331-9. doi: 10.1080/17457300.2011.628752. Epub 2011 Oct 28.Int J Inj Contr Saf Promot. 2012.PMID: 22035060