title: Electrocardiographic and vectorcardiographic signs of the shifting pacemaker of the heart within the sinoatrial node.
mesh_terms: D000328:Adult; D001145:Arrhythmias, Cardiac / Q000175:diagnosis* / Q000209:etiology; D001285:Atropine / Q000627:therapeutic use; D006332:Cardiomegaly / Q000175:diagnosis; D003327:Coronary Disease / Q000175:diagnosis; D004562:Electrocardiography; D005080:Exercise Test; D006325:Heart Atria; D006329:Heart Conduction System; D006801:Humans; D009393:Nephritis / Q000150:complications; D012216:Rheumatic Diseases / Q000175:diagnosis; D012849:Sinoatrial Node; D013328:Strophanthins / Q000009:adverse effects; D014672:Vectorcardiography
chemical_list: D013328:Strophanthins; D001285:Atropine