The American Economic Association's registry for randomized controlled trials
Select the trial sections you'd like to search within...
1052 Trials Found
J13 Early childhood stimulation; other codes: I20, I25, I30, I38
C93, I10
C93, Q180, Q190, Q510
D63, C93, and H20.
C93, D81, D84
C93; D64; L31
H24, I38, C93, H53
C93, J23, J64, J71
C93, D91, O12
I24, C93, J15