The American Economic Association's registry for randomized controlled trials
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213 Trials Found
North West Province, Districts of Ngaka Modiri Molema and Dr. Kenneth Kaunda
New York State
ZARIA, KADUNA STATE
Cross River State, Nigeria.
North
North (Gaibandha)
North (Kurigram)
Osun State
north
North Rhine Westphalia (NRW)