The American Economic Association's registry for randomized controlled trials
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248 Trials Found
D01, C91, C92, D63, D91, J71
J7, J2, D5, D8, D9
C92, H41
C91, C92, D64, Q56
C72, C91, D8, D9
C92, D74
D8, C93
C92, D85, D91, Z13.
C92, D82, D83
C72; C92