====== Comparative ======

   - The study involves comparing two or more groups, conditions, or variables.
   - For example, it might compare health outcomes in patients exposed to a particular risk factor versus those who are not, or compare the effectiveness of different treatments.
   - The comparison helps identify differences or associations between groups.

see [[Comparative study]]
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([[Patient]], [[Intervention]], [[Comparative]], [[Outcome]], [[Timing]], and [[Type of study]]), complemented with a verification of [[regulatory approval]], examination of sample size, quality of patient allocation, maintenance of treatment, and presence of masking techniques