PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2864739-8 1985 After infusion of the beta-1 agonist prenalterol and the beta-2 selective agonist terbutaline, a profound decrease in esophageal peristaltic amplitude was seen. Terbutaline 82-93 potassium calcium-activated channel subfamily M regulatory beta subunit 2 Homo sapiens 57-63