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(MEH-luh-TOH-nun)
| | A hormone made by the pineal gland (tiny organ near the center of the brain). Melatonin helps control the body’s sleep cycle, and is an antioxidant. It is also made in the laboratory and sold as a supplement. |
| Previous Definitions: | melanoma, Melanoma Antigen Recognized by T cells 1, melanoma in situ, melanoma vaccine, melanotropin receptor | | Next Definitions: | melphalan, memantine hydrochloride, membrane, MEN syndrome, MEN-10755 |
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