title: [A case of abortive pre-excitation caused by the presence of Mahaim fibers].
mesh_terms: D000200:Action Potentials; D000328:Adult; D001283:Atrioventricular Node / Q000503:physiopathology; D002036:Bundle of His / Q000503:physiopathology; D004562:Electrocardiography; D006801:Humans; D008297:Male; D011226:Pre-Excitation Syndromes / Q000175:diagnosis*; D011227:Pre-Excitation, Mahaim-Type / Q000175:diagnosis* / Q000503:physiopathology
vernacular_title: Przypadek poronnej preekscytacji spowodowanej obecnościa włókien Mahaima.