[A case with electrocardiographic indication of the presence of dual A-V nodal pathways during the attack of variant angina].
D000788:Angina Pectoris, Variant / Q000503:physiopathology*; D001283:Atrioventricular Node / Q000503:physiopathology*; D004562:Electrocardiography; D006327:Heart Block / Q000175:diagnosis*; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged