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![](https://webarchive.library.unt.edu/eot2008/20081104114254im_/http://www.cancer.gov/images/spacer.gif)
| A topical preparation of tretinoin that is used to treat acne. Tretinoin is a form of vitamin A. |
Previous Definitions: | response, response rate, resting, resveratrol, retch | Next Definitions: | Retin-A-Micro, retina, retinoblastoma, retinoic acid, retinoid |
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