The American Economic Association's registry for randomized controlled trials
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542 Trials Found
C90, D90, J16
C91; D01; J16
O13, C90, Q16
H31, D31, D63
C90, D64, D83, D91, J15, Z18
D03, I20, I21, O12, C93
C91, C92, D03, Z13
C90, D44, H23
D01