The American Economic Association's registry for randomized controlled trials
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947 Trials Found
C93, D01, D90, D91, I12, J01
I18, H75
C91, D91, D71
C93, D91, H26
C93, D91, H53, I38
C9, D83, D64, C45, D91
D83, D91
D91, O12, I32, D83
F22, H12, J15, O15
C91; D81; D91