PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2149390-5 1990 Although other vasodilators have been shown to be anti-arrhythmic, ACE inhibitors also raise serum potassium levels and this may therefore be of importance to their anti-arrhythmic activity. Potassium 99-108 angiotensin I converting enzyme Homo sapiens 67-70