Fig. 2From: The complex microbiome from native semen to embryo culture environment in human in vitro fertilization procedurePrincipal coordinate analysis (PCoA) of bacterial communities in studied samples based on (a) phylum, (b) classes and (c) genera levels. A principal coordinate analysis plot demonstrates different clustering of different specimens (semen, washed sperm, incubated sperm and IVF culture solution)Back to article page