tokens: Studies with human umbilical vein segments exposed to hypoxia also demonstrated increased elaboration of IL-8 antigen compared with normoxic controls .
folded_tokens: studies with human umbilical vein segments exposed to hypoxia also demonstrated increased elaboration of il-8 antigen compared with normoxic controls .
labels: O O B-tissue I-tissue I-tissue I-tissue O O B-other_name O O O O O B-protein_molecule O O O O O O