The American Economic Association's registry for randomized controlled trials
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1097 Trials Found
C91, D15, D91
C91, H41, Q54, D71, D63
D91, J16, C91
C91, D83, D91, G11, Q54
C92, M54
C93, D72, D73, D91, H23
C91, D15, D91, G51
C91, C93, D12, D83, I12
C93, D72, D91
C92; D43; D83.