tokens: We have developed a three-layer Percoll density gradient that allows separation of the different granules and vesicles from human neutrophils ; in particular , it allows separation of specific and gelatinase granules .
folded_tokens: we have developed a three-layer percoll density gradient that allows separation of the different granules and vesicles from human neutrophils ; in particular , it allows separation of specific and gelatinase granules .
labels: O O O O B-other_name I-other_name I-other_name I-other_name O O O O O O B-cell_component O O O B-cell_type I-cell_type O O O O O O O O O O B-cell_component I-cell_component O