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Histopathological analysis of effects of splenectomy (sp) on pancreatitis developing in aly/aly mice at the ages of 20, 30, and 40 weeks old, respectively. Sham 20 w, 30 w, and 40 w indicated sham-group mice at the ages of 20, 30, and 40 weeks old, respectively. Arrows, indicating lymphoid cell infiltration and *indicating some pancreatic ducts of proliferation and regeneration. a, artery; d, pancreatic duct; La, islet of Langerhans; v, vein. Scale bars: 200 μm.
