PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 3085265-4 1986 A one-stage clotting assay for VIII:C has been developed where heparin is neutralized by Polybrene, a synthetic polymerized quaternary ammonium salt. Ammonium Chloride 124-148 cytochrome c oxidase subunit 8A Homo sapiens 31-35