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Cumulative data for proliferation indices and epithelial compartments in the upper gastrointestinal mucosa. Mcm2 and Ki-67 expression is shown as a percentage of total epithelial cells (panel A) and according to the localization of proliferating cells (panel B) in the second part of the duodenum (D2), gastric antrum (gastric), BE, LGD, HGD, and AC.
