High concentrations of neutrophils [24], high preoperative levels of natural killer cells [25], high numbers of mast cells [26,27], a high percentage of CD4+ T cells [28], the infiltration of the tumor with high numbers of central memory T cells and high CD8+ T cell counts [29], for example, have been found to correlate with a better prognosis. The gene discussed is CD4; the disease is neoplasm.