![](https://webarchive.library.unt.edu/eot2008/20081108122348im_/http://www.cancer.gov/images/spacer.gif) |
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![](https://webarchive.library.unt.edu/eot2008/20081108122348im_/http://www.cancer.gov/images/spacer.gif)
| An agent that delivers the gene for interleukin-2 (IL-2) into cells to increase production of IL-2 by the cells. |
Previous Definitions: | leukocyte, leukopenia, leukoplakia, leuprolide, leuprolide acetate | Next Definitions: | levamisole, levels of evidence, levetiracetam, levocarnitine, levofloxacin |
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![](https://webarchive.library.unt.edu/eot2008/20081108122348im_/http://www.cancer.gov/images/spacer.gif) |