The American Economic Association's registry for randomized controlled trials
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943 Trials Found
C92, D85, D91, Z13.
C91, D90, D91
J71; D91; C90;
D6, D63, D64, D9, D91, D3, D31, H53, I38
D12, D91, M31
C91, D83, D84, D91, G41
Q18, Q56, I12, D91, C93
C91, D63
D18, D91, E21, G28, G51