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Intestinal permeability to 4 kDa-FITC-dextran from the four groups: Term (T), Preterm (P), P+Leptin, and P+epidermal growth factor (P+EGF) at day 10. Results are expressed as mean ± SD (n = 9 pups/group). Statistical differences: * p < 0.05 versus T group; φ p < 0.05 versus P group.
