title: ECG of the month. Loose ends. Trifascicular block.
authors.affiliation: Cardiology Service, Department of Medicine, Texas Tech University Health Sciences Center and Thomason General Hospital, El Paso, Texas, USA.
authors.forename: J I
authors.initials: JI
authors.lastname: Martinez-Lopez
mesh_terms: D002037:Bundle-Branch Block / Q000175:diagnosis; D004562:Electrocardiography; D006327:Heart Block / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged