Fig. 2From: Stage-dependent angiopoietin-Tie2 and nitric oxide signaling of erythrocytes in response to surgical trauma in head and neck cancera Angiopoietin-1 and angiopoietin-2 plasma levels before and after surgery in cancer patients; b change in angiopoietin-1 and angiopoietin-2 levels, mean and 95% confidence interval. n = 10, **p < 0.01Back to article page