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Hamel MJ, Poe A, Bloland P, McCollum A, Zhou Z, Shi YP, Ouma P, Otieno K, Vulule J, Escalante A, Udhayakumar V, Slutsker L.Hamel MJ, et al. Among authors: udhayakumar v.Trans R Soc Trop Med Hyg. 2008 Apr;102(4):338-45. doi: 10.1016/j.trstmh.2008.01.018. Epub 2008 Mar 5.Trans R Soc Trop Med Hyg. 2008.PMID: 18321547Clinical Trial.