Fig. 7From: Natural killer (NK) cells inhibit systemic metastasis of glioblastoma cells and have therapeutic effects against glioblastomas in the brainEffects of treatment schedule on the treatment effects of intravenous supplementation of Human NK cells. a Experimental schedule illustrated. b Tumor volumes were determined and compared four weeks after the tumor cell transplantation (n = 7 for each group). Data = mean + SE. ***p < 0.001, vs. control, **p < 0.01, vs human NK cell treated once a week for three weeksBack to article page