tokens: L-selectin is an adhesion molecule of the selectin family that mediates the initial step of leukocyte adhesion to vascular endothelium .
folded_tokens: l-selectin is an adhesion molecule of the selectin family that mediates the initial step of leukocyte adhesion to vascular endothelium .
labels: B-protein_molecule O O O O O O B-other_name I-other_name O O O O O O B-other_name I-other_name O B-tissue I-tissue O