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Balen J, Zhao ZY, Williams GM, McManus DP, Raso G, Utzinger J, Zhou J, Li YS.Balen J, et al.Bull World Health Organ. 2007 Jul;85(7):519-26. doi: 10.2471/blt.06.034033.Bull World Health Organ. 2007.PMID: 17768500Free PMC article.
Li Y, Zeng Q, Ellis MK, Xiong T, Balen J, McManus DP.Li Y, et al. Among authors: balen j.Am J Trop Med Hyg. 2006 Nov;75(5):910-3.Am J Trop Med Hyg. 2006.PMID: 17123986
Hou XY, McManus DP, Gray DJ, Balen J, Luo XS, He YK, Ellis M, Williams GM, Li YS.Hou XY, et al. Among authors: balen j.Bull World Health Organ. 2008 Oct;86(10):788-95. doi: 10.2471/blt.08.053041.Bull World Health Organ. 2008.PMID: 18949216Free PMC article.Clinical Trial.