ENSELBERG, C D The intramuscular administration of procaine amide; a safe and effective method for the treatment of cardiac arrhythmias. [electronic resource] - American heart journal Nov 1952 - 781-6 p. digital Publication Type: Journal Article ISSN: 0002-8703 Standard No.: 10.1016/0002-8703(52)90104-x doi Subjects--Topical Terms: Arrhythmias, Cardiac--therapyHumansInjections, IntramuscularProcainamideProcaine--analogs & derivatives