The American Economic Association's registry for randomized controlled trials
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459 Trials Found
C78, C91, D63
C93, D64, D91, J14
C93, D63, D64, D90
C91, D90, D91, J16
C93, D90, Q41
C93, D63, D31, H23, J62
C72, C92, D64, H41
C21, C90, C92, D64, D91, I00, I12.
H25, H26
I12, D90