What does "Arms" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.
In the context of medicine, "arms" refers to different groups in a clinical trial. Each group, or "arm", receives a different treatment, which could be a new drug, a placebo, or a standard treatment. This allows researchers to compare the effects of different treatments on the same condition. The participants in each arm do not know which treatment they are receiving to ensure the results are unbiased.
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