正常菌群 [微] normal flora ; normal microflora ; normal endogenous flora ; normal microbial flora
口腔正常菌群 oral normal flora
或正常菌群 normal flora of bacteria
肠道正常菌群 Normal flora ; Intestinal tract normal flora
呼吸道正常菌群 NRF ; normal upper respiratory tract flora
人体正常菌群 Body normal flora
正常菌群以肺炎链球菌 Sptreptococcus pneumoniae
人或动物正常生理菌群 normal microbiota
常居细菌群 resident flora
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