an increasing trendp < 0.001
In each group, respectively, ERFE showed an increasing trend during the first year of life (Fig. 2 ) and ERFE was significantly higher at 12 months compared to 6 weeks of age in all 3 groups ( p < 0.001).
In each group, respectively, ERFE showed an increasing trend during the first year of life (Fig. 2 ) and ERFE was significantly higher at 12 months compared to 6 weeks of age in all 3 groups ( p < 0.001).