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Use of Airtime Amounts to Improve Interactive Voice Response Surveys in Colombia and Tanzania

Johns Hopkins Bloomberg School of Public Health · 2018
ClinicalTrials.gov · Datasets · License: Public Domain · 2018
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incentivenanoncommunicable-diseasessurveys-and-questionnaires
surveys and questionnaires, noncommunicable diseases, mobile phone surveys, interactive voice response, incentive, interventional, na
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