The American Economic Association's registry for randomized controlled trials
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958 Trials Found
R40, Q58, C92
C91, D83, J24, J54
C72, C78, C91, C92
C72, C91, D8, D9
C91, J15
D72, P16, C83
C91, D90, D91
D72, D83, D91, E71
C33 C91 D91
C83; C91; D64; D90; Z13