tokens: Chemokines refer to a rapidly expanding family of small cytokines whose primary function is recruitment of leukocytes to inflammatory sites .
folded_tokens: chemokines refer to a rapidly expanding family of small cytokines whose primary function is recruitment of leukocytes to inflammatory sites .
labels: B-protein_family_or_group O O O O O O O O B-protein_family_or_group O O O O O O O O O O O