The American Economic Association's registry for randomized controlled trials
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678 Trials Found
J41, O18, Q51
C91, D81, D83
D72, D83, C93
O12, D83, D91, I15
J24, L86, O31, O32, O33, D81, D83, M13
D91, D83, Q18
C91, D83, P16
D83, D90, D91
D72; D83; L82; L86