tokens: The proliferative activity of tumors has been extensively investigated with different approaches , among which the use of the monoclonal antibody Ki-67 represents an easy and reliable means of assessing cell proliferation .
folded_tokens: the proliferative activity of tumors has been extensively investigated with different approaches , among which the use of the monoclonal antibody ki-67 represents an easy and reliable means of assessing cell proliferation .
labels: O O O O B-other_name O O O O O O O O O O O O O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O O O O O O O O O O O