RT Journal Article SR Electronic T1 Evidence for two distinct types of potassium-activated calcium channels in an intestinal smooth muscle. JF Journal of Pharmacology and Experimental Therapeutics JO J Pharmacol Exp Ther FD American Society for Pharmacology and Experimental Therapeutics SP 574 OP 580 VO 214 IS 3 A1 L Hurwitz A1 L J McGuffee A1 S A Little A1 H Blumberg YR 1980 UL http://jpet.aspetjournals.org/content/214/3/574.abstract AB