Intestinal serotonin acts as a paracrine substance to mediate vagal signal transmission evoked by luminal factors in the rat
The Journal of Physiology (2001) - Comments
pubmed: 11158274  doi: 10.1111/j.1469-7793.2001.0431k.x  issn: 0022-3751 

J. X. Zhu, X. Y. Wu, C. Owyang, Y. Li