RT Journal Article SR Electronic T1 Relationship between cyclic nucleotide levels and drug-induced relaxation of smooth muscle. JF Journal of Pharmacology and Experimental Therapeutics JO J Pharmacol Exp Ther FD American Society for Pharmacology and Experimental Therapeutics SP 480 OP 484 VO 211 IS 3 A1 Janis, R A A1 Diamond, J YR 1979 UL http://jpet.aspetjournals.org/content/211/3/480.abstract AB