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Thread: HY Concept 48

  1. 02-10-2004, 03:55 AM #1
    tommyk
    tommyk is offline USMLE Advisor
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    HY Concept 48

    LIVE to know that:

    Niacin, Melatonin and serotonin are derived from what amino acid? Think hard first before looking!
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  2. 02-10-2004, 03:56 AM #2
    tommyk
    tommyk is offline USMLE Advisor
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    it is...

    answer is tryptophan! Don't forget....
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