[word=extracellular] [tag=NNS] [□=□]
[word=extracellular] [tag=NNS] [tag=□]
[word=extracellular] [tag=NNS] [word=□]
Here it should be clarified that the polymorphonuclear leukocytes ( = neutrophils ) are mandatory to the host defense against extracellular bacteria such as H. influenzae , meningococci , and pneumococci .