Fig. 5From: Prenatal and postnatal antibiotic exposure influences the gut microbiota of preterm infants in neonatal intensive care unitsComparison of the gut microbial communities in the H and L groups. a The Shannon index showed no significant difference between the two groups on d14 (p > 0.05). PCoA was generated with OTUs (at 97% similarity) present in the different fecal samples. b PC1 vs. PC2. c PC1 vs. PC3. d PC2 vs. PC3Back to article page