The American Economic Association's registry for randomized controlled trials
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329 Trials Found
C90, D72, D73.
C90, D43, D12, D83
C90; D01; D83; D91; R11
J24, J31, C90
D83, D63, D31
I25, O15, D04
D31, D63, D90, and D92
C91, D31, D63
D03 , D91 , H41, D64, C90
C72, C90, L13