RT Journal Article SR Electronic T1 Relative inotropic and arrhythmogenic effects of five cardiac steroids in ventricular myocardium: oscillatory afterpotentials and the role of endogenous catecholamines. JF Journal of Pharmacology and Experimental Therapeutics JO J Pharmacol Exp Ther FD American Society for Pharmacology and Experimental Therapeutics SP 348 OP 356 VO 218 IS 2 A1 H S Karagueuzian A1 B G Katzung YR 1981 UL http://jpet.aspetjournals.org/content/218/2/348.abstract AB