title: Electrocardiographic changes during microlaryngoscopy under halothane anaesthesia.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000769:Anesthesia, Inhalation; D001145:Arrhythmias, Cardiac / Q000503:physiopathology*; D003327:Coronary Disease / Q000503:physiopathology; D004562:Electrocardiography; D005260:Female; D006221:Halothane / Q000494:pharmacology*; D006329:Heart Conduction System; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D007273:Injections, Intramuscular; D007442:Intubation, Intratracheal; D007828:Laryngoscopy; D008297:Male; D008875:Middle Aged; D011229:Preanesthetic Medication
chemical_list: D006221:Halothane