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<p>T-cells are named for the thymus where <a href="page.php?w=T_cell">T-lymphocytes</a> migrate from bone marrow to mature. Its regression has been linked to a reduction in <a href="page.php?w=immunosurveillance">immunosurveillance</a> and the rise of infectious disease and cancer incidence in the elderly (in some cases risk is inversely proportional to thymus size). Though thymic involution has been linked to <a href="page.php?w=immunosenescence">immunosenescence</a>, it is not induced by <a href="page.php?w=senescence">senescence</a> as the organ</p><p>
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