RT Journal Article SR Electronic T1 Effects of verapamil on excitation-contraction coupling in frog sartorius muscle. JF Journal of Pharmacology and Experimental Therapeutics JO J Pharmacol Exp Ther FD American Society for Pharmacology and Experimental Therapeutics SP 49 OP 57 VO 205 IS 1 A1 Bondi, A Y YR 1978 UL http://jpet.aspetjournals.org/content/205/1/49.abstract AB