title: ECG of the month. Brink of disaster. Second-degree AV 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; D004562:Electrocardiography; D006327:Heart Block / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D008297:Male; D009203:Myocardial Infarction / Q000150:complications / Q000188:drug therapy