. 2019 May 21;9(28):15887–15899. doi: 10.1039/c9ra02368b

Main models of physiological mucus proposed in the literature.

Reference	31	63	40	37	64	65	66	19
Intestinal tract	Duodenum	Duodenum	Jejunum	Jejunum	Jejunum	Small intestine^a	Small intestine^a	Small intestine^a	Colon

No information is specified on the intestinal tract.