title: Significance of the sino-atrial node on mechanism of occurrence of atrial fibrillation.
mesh_terms: D000200:Action Potentials; D000328:Adult; D000470:Alkaloids; D000818:Animals; D001281:Atrial Fibrillation / Q000139:chemically induced / Q000503:physiopathology*; D004285:Dogs; D004558:Electric Stimulation; D004562:Electrocardiography; D006801:Humans; D008297:Male; D008564:Membrane Potentials; D012849:Sinoatrial Node / Q000503:physiopathology*; D013610:Tachycardia / Q000139:chemically induced; D013779:Tetrodotoxin
chemical_list: D000470:Alkaloids; D013779:Tetrodotoxin