PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 18987553-3 2009 It has been also shown that an acetylcholinesterase inhibitor, the short-acting drug edrophonium administered intravenously caused a greater increase in the esophageal contraction amplitude and duration than bethanechol. Bethanechol 208-219 acetylcholinesterase (Cartwright blood group) Homo sapiens 31-51