The American Economic Association's registry for randomized controlled trials
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850 Trials Found
D91; J15.
D14, D83, D91, G11, G53
D91
I12, D91, C93
D81, D91
A21, D91, I21, J24
C91, D90, D91
C90, D64, D83, D91, J15, Z18
I21, I23, C93, D90, D91
C93 I21 I23 D91