PDGF-A expression was significantly different for both data sets above and below the mean between tumor and disease-free tissues (p(t)<0.05; p(WRS)<0.05) and between tumor adjacent and disease-free tissues (p(t)<0.05; p(WRS)≤0.05), while expression was similar in tumor and tumor adjacent tissues (p(t) = 0.61 to 0.65; p(WRS) = 0.64 to 0.66) (Figs. 4C and 4D and Table 2). The gene discussed is PDGFA; the disease is neoplasm.