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Randomized controlled trial - Wikipedia
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Cohort vs Randomized Controlled Trials: A Simple Explanation – Quantifying Health
Randomized Controlled Trials – howMed
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Twelve-month outcomes of MAKINGtheLINK: A cluster randomized controlled trial of a school-based program to facilitate help-seeking for substance use and mental health problems - eClinicalMedicine
Attrition bias in randomized controlled trials - Students 4 Best Evidence