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Theobald S, MacPherson E, McCollum R, Tolhurst R.Theobald S, et al.BMC Proc. 2015 Dec 18;9(Suppl 10):S8. doi: 10.1186/1753-6561-9-S10-S8. eCollection 2015.BMC Proc. 2015.PMID: 28281706Free PMC article.
Theobald S, Tolhurst R, Squire SB.Theobald S, et al.Trans R Soc Trop Med Hyg. 2006 Apr;100(4):299-304. doi: 10.1016/j.trstmh.2005.05.023. Epub 2006 Jan 23.Trans R Soc Trop Med Hyg. 2006.PMID: 16430933