A, Number of splenocytes in the water-drinking and alcohol-consuming mice at the indicated days after melanoma inoculation. B, Number of PBL in 700 μl of blood of the water-drinking and alcohol-consuming mice after the indicated days of tumor inoculation. C, Number of PBL in 700 μl of blood of the non-tumor inoculated water-drinking and alcohol-consuming mice. D, Number of indicated lymphocytes in700 μl of blood of the non-tumor inoculated water-drinking and alcohol-consuming mice. E, Percentage of indicated lymphocytes in PBL of the non-tumor inoculated water-drinking and alcohol-consuming mice. Each group contained 7–10 mice. The experiments were repeated once with the similar results. Water: Water-drinking mice. ETOH: Alcohol-consuming mice. Water-drinking group different from alcohol-consuming (ETOH) group on the indicated day, * p<0.05; ** p<0.01; *** p<0.001.