PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16527254-6 2006 DFX-induced increase of COX-2 expression and HIF-1alpha protein level was attenuated by addition of ferric citrate. ferric citrate 100-114 prostaglandin-endoperoxide synthase 2 Homo sapiens 24-29