title: Collision of excitation waves in the dog Purkinje system. Extracellular identification.
mesh_terms: D000200:Action Potentials; D000818:Animals; D005117:Cardiac Complexes, Premature / Q000503:physiopathology; D046508:Culture Techniques; D004285:Dogs; D004558:Electric Stimulation; D005110:Extracellular Space; D006329:Heart Conduction System / Q000033:anatomy & histology / Q000502:physiology*; D008722:Methods; D008839:Microelectrodes; D009469:Neuromuscular Junction / Q000502:physiology; D010138:Pacemaker, Artificial; D016276:Ventricular Function