Fig. 3From: Prenatal and postnatal antibiotic exposure influences the gut microbiota of preterm infants in neonatal intensive care unitsComparison of microbial communities by PCoA. PCoA was generated with OTUs (at 97% similarity) present in the different fecal samples. a PC1 vs. PC2. b PC1 vs. PC3. c PC2 vs. PC3Back to article page