The American Economic Association's registry for randomized controlled trials
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619 Trials Found
D31, D63, D90, and D92
C78, C91, D63
D90, D91, J01, J33, M50, M52
C91, D31, D63
D90
C78; D90
D90, D81
D03 , D91 , H41, D64, C90
A13, O28, D63, D72
D90, J15, J18, K37