PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9474095-8 1998 After precontraction with norepinephrine, the maximal relaxation to acetylcholine (endothelium-dependent, receptor-mediated agonist) for control vein grafts was 0%, whereas for VEGF-treated vein grafts it was 25% +/- 9% (p < 0.05 vs control grafts). Norepinephrine 26-40 vascular endothelial growth factor A Oryctolagus cuniculus 177-181