Fig. 2From: Comparison of murine retroorbital plexus and facial vein blood collection to mitigate animal ethics issuesCorticosterone concentrations in the peripheral blood. Corticosterone concentrations in the peripheral blood of mice subjected to the retroorbital plexus (RP) and facial vein (FV) methods were measured by ELISA. Data are shown as means ± s.d. P values were calculated by two-tailed unpaired Student’s t-test, with n = 6/blood collection method. *P < 0.05 and **P < 0.01Back to article page