IFNA1 and neoplasm: No significant inhibitory effect on tumor size (3.81 ± 0.92 g vs. 3.22 ± 0.62 g, P = 0.217), MVD (70, 95% CI = 59–81 vs. 61, 95% CI = 48–74, P = 0.198) and apoptotic index (4.84% ± 1.16% vs. 5.56% ± 1.41%, P = 0.360) (Figure 2) was observed between group E (normal saline control) and group F (re-initiated IFN-α treatment).