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Randomized Controlled Trial (RCT)

Impact of price change in Zambia

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Filtration education

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Intermittent slow sand filtration

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Concrete biosand filter: Dominican Republic

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Chlorination and safe storage

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Solar disinfection: Southern India

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Clean water in Malawi

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Flocculant-disinfectant: Guatemala

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Diarrhoea prevention in Bolivia

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Household-level water disinfection

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