Stoinov, Simeon G., Plamen I. Penchev, Vanja A. Gerova, and Vesselina G. Tsenova. 2008. “Histamine, 5-Hydroxytriptamine, Collagen, Mast Cells and Ig-Secreting Cells in the Small Bowel Disorders With Diarrhea”. Journal of Gastrointestinal and Liver Diseases 17 (4):479-87. https://www.jgld.ro/jgld/index.php/jgld/article/view/2008.4.206.