title: ECG of the month. Aberrant behavior. Sustained bigeminal rhythm.
authors.forename: J I
authors.initials: JI
authors.lastname: Martinez-Lopez
mesh_terms: D003937:Diagnosis, Differential; D004562:Electrocardiography; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011226:Pre-Excitation Syndromes / Q000175:diagnosis* / Q000503:physiopathology