Fig. 2From: Anti-stress effects of human placenta extract: possible involvement of the oxidative stress system in ratsThe effects of hPH on EPM. a percentage of spent time in the open arm and (b) percentage of spent time in the close arm. Each value represents the mean + S.E.M. ++P < 0.01 compared to the normal group; **P < 0.01 compared to the control groupBack to article page