The American Economic Association's registry for randomized controlled trials
Select the trial sections you'd like to search within...
441 Trials Found
I15, J13, J16, J81, O15
D91; I25
J24, I25, I31
Health, Education and Welfare
I15, C93
I21, I25, O15
I12: Health behaviour
I21, I25, I29
I15, I14
I15, I25, O12, O15