Title: Isoproterenol antagonizes prolongation of refractory period by the class III antiarrhythmic agent E-4031 in guinea pig myocytes. Mechanism of action.

Authors: M C Sanguinetti, N K Jurkiewicz, A Scott, P K Siegl

Journal, date & volume: Circ. Res., 1991 Jan , 68, 77-84

PubMed link: http://www.ncbi.nlm.nih.gov/pubmed/1984874

Abstract