“… 43 The incidence of MVI was also found to be significantly higher in HCC patients with low INR levels than normal or high INR levels. 44 RBC could inhibit tumor growth and metastasis by removing circulating immune complexes. 45 Normal RBCs improve the killing effect on tumor cells by increasing the activity of the lymphocyte-activated killer cells and the NK cells through the release of natural killer cell-activating factors.…”