Fig. 7From: Prenatal and postnatal antibiotic exposure influences the gut microbiota of preterm infants in neonatal intensive care unitsColonization percentage of five gut bacteria in the H group (> 7d) and L group (≤ 7d). The colonization of Bifidobacterium decreased more significantly in the H group than in the L group (5.47% in the H group vs. 10.24% in the L group, p < 0.05)Back to article page