title: [Effect of beta-receptor blocking agent in 2nd degree av-block: conduction study in 9 patients (author's transl)].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001919:Bradycardia / Q000188:drug therapy; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000188:drug therapy*; D006329:Heart Conduction System / Q000187:drug effects*; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D008297:Male; D008790:Metoprolol / Q000008:administration & dosage / Q000627:therapeutic use*; D008875:Middle Aged; D011412:Propanolamines / Q000627:therapeutic use*; D013610:Tachycardia / Q000188:drug therapy
chemical_list: D011412:Propanolamines; D008790:Metoprolol
vernacular_title: Beta-Rezeptorenblocker bei atrioventrikulärem Block II. Grades: Intrakardiale elektrographische Untersuchungen an 9 Patienten.