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Differences in bacterial abundance of classified genera and species after the chlorhexidine (CHX-M, n = 20) and propolis (PROP-M, n = 23) treatment (2A). Differences in nitrite-producing species between baseline levels and after the CHX-M (2B) and the PROP-M (2C) treatment. Differential abundance of individual nitrite-producing species after both treatments using linear models (2D).
