| Label | Id | |
|---|---|---|
| RCTs | randomized, placebo-controlled trials | |
| RCT | randomized placebo-controlled trials | |
| RCTs | randomized placebo-controlled trials | |
| PCTs | placebo-controlled trials | |
| RCT | Randomized placebo-controlled trials | |
| RCTs | randomized, double-blind, placebo-controlled trials | |
| RCTs | Randomized placebo-controlled trials | |
| RCTs | randomised placebo-controlled trials | |
| RCTs | randomised, placebo-controlled trials |