1: Tatsuoka M, Osaki Y, Ohsaka F, Tsuruta T, Kadota Y, Tochio T, Hino S, Morita T, Sonoyama K. Consumption of indigestible saccharides and administration of Bifidobacterium pseudolongum reduce mucosal serotonin in murine colonic mucosa. Br J Nutr. 2021 Apr 14:1-13. doi: 10.1017/S0007114521001306. Epub ahead of print. 13(1):1-20. doi: 10.1080/19490976.2020.1869503. 4: Mohammadi F, Naghavi MR, Peighambari SA, Dehaghi NK, Nasiri J, Khaldari I, Bravi E, Sileoni V, Marconi O, Perretti G. Comparison of carbohydrate partitioning and expression patterns of some genes involved in carbohydrate biosynthesis pathways in annual and biennial species of Cichorium spp. Phytochemistry. 2021 Mar;183:112620. doi: 10.1016/j.phytochem.2020.112620. Epub 2020 Dec 24. 15(12):e0243432. doi: 10.1371/journal.pone.0243432.