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. 2020 Feb 13;217(3):e20192195. doi: 10.1084/jem.20192195

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Figure 1. — Role of IL-22 in the intestine during homeostasis. Schematic representation of an epithelial crypt composed of various cell types. Sensing mechanisms that lead to signals that stimulate IL-22 productions are on the left side, and IL-22 effector functions on the different epithelial cell types are on the right side. SAA, serum amyloid A. TA, transit amplifying.