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. Author manuscript; available in PMC: 2009 Mar 1.
Published in final edited form as: Acta Trop. 2007 Dec 8;105(3):235–241. doi: 10.1016/j.actatropica.2007.12.002

Figure 1.

Figure 1

Map of the location of the 50 villages included in the snail survey in Western Samar Province, the Philippines.

Legend: green crosses represent rain-fed villages and blue dots irrigated villages.