Glossary of terms used on this site
Reference: Wikipedia (www.wikipedia.com)
| Term | Definition |
|---|---|
| Observational studies | Like intervention studies, observational studies attempt to understand cause-and-effect relationships. However, unlike interventions, the researcher is not able to control how subjects are assigned to groups and/or which treatments each group receives. Researchers record variables’ values as they naturally occur (can be retrospective or prospective) during a certain follow up period (see Intervention studies).
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| Over-the-counter drugs | Over-the-counter (OTC) drugs are medicines sold directly to a consumer without a prescription from a healthcare professional, as opposed to prescription drugs, which may be sold only to consumers possessing a valid prescription.
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| Oxycholesterols | is a group of cholesterol compounds that contain extra oxygen atoms were found to be highly toxic and highly effective in producing arteriosclerosis. The highly damaging oxycholesterols are found in foods in which cholesterol is subjected to heating and exposure to the oxygen of the air during food processing, cooking or preservation.
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