The American Economic Association's registry for randomized controlled trials
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139 Trials Found
C83, D84, E31
C83; D84; E31; J13.
J64. D83, D84
D83, D84, J64
C91, D83, D84, D91, G41
E21, E24, E52, C83, D84
D12, D83, D84, H31
C93, D12, D84, D91, E31
D73, D83, D84, I23