For each category, some biopsies were stained negative for Hpa2 (Figure 1, upper panels) and some were stained positive, exhibiting weak (Figure 1, middle panels) or strong (Figure 1, bottom panels) staining, but the overall staining pattern was similar among all study groups (Table 1 and Figure 2A) and did not correlate with tumor size (p = 0.84), T-stage (p = 0.12) and the total number of positive lymph nodes (p = 0.64). The gene discussed is HPSE2; the disease is neoplasm.