tokens: METHODS : Cultured bovine corneal endothelium was stimulated for 6 hours by 40 micron/ml tumor necrosis factor alpha ( TNFalpha ) .
folded_tokens: methods : cultured bovine corneal endothelium was stimulated for 6 hours by 40 micron/ml tumor necrosis factor alpha ( tnfalpha ) .
labels: O O O B-tissue I-tissue I-tissue O O O O O O O O B-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule O B-protein_molecule O O