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Distribution of venous blood oxygenation values in the fetal brain in normal growth (blue) and growth-restricted (red) fetuses across gestation. A decreasing (normal growth: slope = −0.7 ± 0.4; growth restriction = −1.2 ± 0.65) trend was observed in both groups, but it was not statistically significant (normal growth: p = 0.1; growth restriction: p = 0.1).
