Following the staging criteria of stain intensity (SI), the average SI score of ABCG2 expression in LMWH treated tumor tissues was 3.63 compared with the average SI score of 9.13 in control tumor tissues (3.63±1.69 vs 9.13±2.03, p<0.05, Figure 4). The gene discussed is ABCG2; the disease is neoplasm.