title: When is QT prolongation antiarrhythmic and when is it proarrhythmic?
authors.forename: B N
authors.initials: BN
authors.lastname: Singh
mesh_terms: D000889:Anti-Arrhythmia Agents / Q000627:therapeutic use; D001145:Arrhythmias, Cardiac / Q000188:drug therapy / Q000503:physiopathology*; D004562:Electrocardiography; D006801:Humans
chemical_list: D000889:Anti-Arrhythmia Agents