Irritable Bowel Syndrome
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5-HT3

By Barbara Bradley Bolen, Ph.D., About.com

Updated February 02, 2008

About.com Health's Disease and Condition content is reviewed by our Medical Review Board

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Definition: Specific receptor sites for the neurotransmitter serotonin, found within the gut, as well as the brain and peripheral nervous system.
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Irritable Bowel Syndrome
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