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El-Jardali F, Jamal D, Ataya N, Jaafar M, Raouf S, Matta C, Michael S, Smith C.El-Jardali F, et al.Health Res Policy Syst. 2011 Oct 7;9:39. doi: 10.1186/1478-4505-9-39.Health Res Policy Syst. 2011.PMID: 21978482Free PMC article.