highly significantp < 0.001
This decrease was significant at 12 months (p < 0.01) and highly significant at 18 and 24 months of age (p < 0.001) (Figure 5a ).
This decrease was significant at 12 months (p < 0.01) and highly significant at 18 and 24 months of age (p < 0.001) (Figure 5a ).