title: Wide and narrow complexes in advanced A-V block.
authors.affiliation: Stanford University School of Medicine, USA.
authors.forename: E W
authors.initials: EW
authors.lastname: Hancock
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003937:Diagnosis, Differential; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000150:complications