The American Economic Association's registry for randomized controlled trials
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223 Trials Found
C92, H41
C91, C92, D64, Q56
C92, D74
C92, D85, D91, Z13.
E31, E52
C92, D82, D83
C72; C92
D83, D82, C92
D83, E31,E52, E71, Q54, H23
C92 C78 I20