Figure 3From: Effects of chronic carbon monoxide exposure on fetal growth and development in mice Comparison of mean fetal and placental mass to maternal exogenous CO exposure. Mean fetal mass for each CO exposure level is displayed in figure A, with a significant decrease in mass observed only at 400 ppm (* p < 0.05). Mean placental mass for each CO exposure level is displayed in figure B; no significance at any of the CO exposures was observed (p > 0.05).Back to article page