title: Letter to the editor.
authors.affiliation: Duke Cardiology, 508 Fulton St. Rm A3000, Durham, NC, USA. Electronic address: green045@mc.duke.edu.
authors.forename: Joseph C
authors.initials: JC
authors.lastname: Greenfield
authors.affiliation: Duke Cardiology, 508 Fulton St. Rm A3000, Durham, NC, USA.
authors.forename: Judith C
authors.initials: JC
authors.lastname: Rembert
mesh_terms: D001145:Arrhythmias, Cardiac / Q000175:diagnosis* / Q000453:epidemiology*; D004562:Electrocardiography / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008297:Male; D014728:Veterans / Q000706:statistics & numerical data*