DOYLE, A E Electrocardiographic changes in hypertension treated by methonium compounds. [electronic resource] - American heart journal Mar 1953 - 363-81 p. digital Publication Type: Journal Article ISSN: 0002-8703 Standard No.: 10.1016/0002-8703(53)90148-3 doi Subjects--Topical Terms: Bis-Trimethylammonium CompoundsCardiovascular AgentsElectrocardiographyHumansHypertension--therapyMuscle Relaxants, Central--pharmacology