title: Letter by Barra and Agarwal regarding article, "Survival after implantable cardioverter-defibrillator implantation in the elderly".
authors: Cardiology Department, Papworth Hospital NHS Foundation Trust, Papworth Everard, Cambridge, United Kingdom.
authors: Sérgio
authors: S
authors: Barra
authors: Sharad
authors: S
authors: Agarwal
mesh_terms: D001145:Arrhythmias, Cardiac / Q000401:mortality* / Q000517:prevention & control*; D017147:Defibrillators, Implantable / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008297:Male