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| A type of clinical trial. In placebo-controlled trials, one group of participants the control arm receives an inactive drug or other intervention, called a placebo, while another group of participants the experimental arm receives the active drug being tested. The two groups are compared to see if the drug is more effective than the placebo. see also placebo | |||
| placebo-controlled: 7 phrases in 3 subjects |
| General | 2 |
| Health care | 1 |
| Pharmacy and pharmacology | 4 |