The American Economic Association's registry for randomized controlled trials
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389 Trials Found
C70, C92
C91, D63, O33
C80, C90, D30, D63
C92, D85, C71, D91, D23
R40, Q58, C92
C72, C78, C91, C92
B4, C1, C91, C92, D81
C72, C73, C92.
D01, C91, C92, D63, D91, J71
D60, D63, H21, H23, I38