The following species were eliminated: Gram(+) anaerobes: Clostridium sporogenes, Eubacterium saburreum, and Lactobacillus fermentum, and Gram(-) anaerobes: Bacteroides ovatus, Bacteroides uniformis, Fusobacterium mortiferum, and Prevotella oralis, as well as Gram(+) aerobic bacterium Staphylococcus aureus MSSA.