The American Economic Association's registry for randomized controlled trials
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573 Trials Found
G21; L26; O12; O16
C93;D03;D21;D83;D84;J64;O17;O12
O12, O13, O33, O55, Q12. Q16
D03, I20, I21, O12, C93
C93,D12,D83,Q2
C91, C92, D03, Z13
O12, I11, I12
O12, O18, 055, J61, D72
D12; I15; O12; O13; Q53