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BrdU labeling in moribund DEARE mice. Mice were injected with BrdU 40 minutes prior to euthanasia and the incorporation revealed by immunohistochemistry. Top: Day 94 following 14 Gy (left), Day 192 following 15 Gy (right). Note the thicker submucosa and the shorter crypts and villi. The diameter of the intestine as a whole is also smaller. Bottom: Unirradiated controls, day 125 (left), day 200 (right).
