PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1384320-1 1992 Several extracorporeal techniques have been used to remove N-acetylprocainamide (NAPA), the major metabolite of procainamide, in patients intoxicated with this substance. Acecainide 59-79 NSF attachment protein alpha Homo sapiens 81-85