The American Economic Association's registry for randomized controlled trials
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271 Trials Found
C90; C91; I21; J15; J16
C90, D91
C90, D60, D90
C80, C90, D30, D63
H23, H24, H55, J38
C70, C90, D44, D47
A22, C90, I20
C78, C90
C11, C90, D83, D91
C93, D91, H21, H24