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• A substance that is used in cancer research to cause tumors in laboratory animals. This is done to test new diets, drugs, and procedures for use in cancer prevention and treatment. Also called 4-nitroquinoline 1-oxide.

  National Cancer Institute - Cite This Source - This Definition
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  Cite Definition for 4-NQO

  American Psychological Association (APA)

  4-NQO. (n.d.). Dictionary of Cancer Terms. Retrieved June 6, 2023, from website: http://www.expertglossary.com/definition/4-nqo.

  Chicago Manual of Style (CMS)

  4-NQO. www.cancer.gov. Dictionary of Cancer Terms. National Cancer Institute. http://www.expertglossary.com/definition/4-nqo (accessed: June 6, 2023).

  Modern Language Association (MLA)

  "4-NQO." Dictionary of Cancer Terms. National Cancer Institute. 6 June. 2023 http://www.expertglossary.com/definition/4-nqo.

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