title: ECG of the month. Name that block! Trifascicular block.
authors.affiliation: Department of Medicine, Texas Tech University Health Sciences Center, El Paso, USA.
authors.forename: J I
authors.initials: JI
authors.lastname: Martinez-Lopez
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002037:Bundle-Branch Block / Q000175:diagnosis* / Q000503:physiopathology; D004562:Electrocardiography; D006329:Heart Conduction System / Q000503:physiopathology; D006801:Humans; D008297:Male