title: Pulmonary vein as an ectopic focus in digitalis-induced arrhythmia.
mesh_terms: D000200:Action Potentials / Q000187:drug effects; D000818:Animals; D001145:Arrhythmias, Cardiac / Q000139:chemically induced*; D006168:Guinea Pigs; D006329:Heart Conduction System / Q000187:drug effects; D008297:Male; D010042:Ouabain / Q000494:pharmacology*; D011667:Pulmonary Veins / Q000187:drug effects* / Q000502:physiology; D013599:Systole
chemical_list: D010042:Ouabain