RT Journal Article SR Electronic T1 The relationship between cyclic nucleotide levels and glycogen phosphorylase activity in isolated rat hearts perfused with epinephrine and acetylcholine. JF Journal of Pharmacology and Experimental Therapeutics JO J Pharmacol Exp Ther FD American Society for Pharmacology and Experimental Therapeutics SP 346 OP 353 VO 202 IS 2 A1 R M Gardner A1 D O Allen YR 1977 UL http://jpet.aspetjournals.org/content/202/2/346.abstract AB