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Quantification of cell proliferation in fetal thymus with staining for Ki-67 (A-C) and PCNA (D). Evaluation of Ki-67 expression in thymus in control group (A) and in LPS group (B) by immunohistochemistry. Representative sections for each time point are shown. Magnification 200x. C. Quantification of Ki-67 (C) and caspase-3-positive (D) thymocytes in thymus sections by immunohistochemistry.
