The American Economic Association's registry for randomized controlled trials
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199 Trials Found
Ashanti region
Ya'an City, Sichuan Province
Sefwi Bekwai, Western North Region
Nkawkaw, Eastern Region
Ningbo, Zhejiang Province
Northern region
Eastern region (Butaleja district)
Anhui Province
Eastern region
North bank region and lower river region
Upper East Region