A<unk>  (PCT), sometimes called a practical<unk><unk>  (PCT), is a<unk><unk>  that focuses on correlation between treatments and outcomes in real-world health system practice rather than focusing on proving causative explanations for outcomes, which requires extensive deconfounding with inclusion and exclusion criteria so strict that they risk rendering the<unk>  results irrelevant to much of real-world practice.
Pragmatic clinical trial
Natural history study
Placebo-controlled study
Prospective cohort study
Randomized controlled trial
Academic clinical trial
Retrospective cohort study
Multicenter trial