The American Economic Association's registry for randomized controlled trials
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1000 Trials Found
D90, D81
D03 , D91 , H41, D64, C90
C99, D11, D81, D91
C83, C91, J16, J71
C91; D63; H23
C92, D82, D83
D72, D91, H21, H23, H24, H41, H53
C91, D11, D14, D16, D31, D91
D81, D83, I12