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Usman HR, Rahbar MH, Kristensen S, Vermund SH, Kirby RS, Habib F, Chamot E.Usman HR, et al. Among authors: kristensen s.Trop Med Int Health. 2011 Mar;16(3):334-42. doi: 10.1111/j.1365-3156.2010.02698.x. Epub 2010 Dec 15.Trop Med Int Health. 2011.PMID: 21159080Free PMC article.Clinical Trial.