title: Reply: Some caveats about QRS duration in patients receiving cardiac resynchronization therapy.
authors: Robbert
authors: R
authors: Zusterzeel
authors: Daniel A
authors: DA
authors: Caños
authors: William E
authors: WE
authors: Sanders
authors: Kimberly A
authors: KA
authors: Selzman
authors: Angelo
authors: A
authors: Ponirakis
authors: Paul D
authors: PD
authors: Varosy
authors: David G
authors: DG
authors: Strauss
mesh_terms: D058406:Cardiac Resynchronization Therapy / Q000379:methods*; D017147:Defibrillators, Implantable; D005260:Female; D006801:Humans; D008297:Male; D012737:Sex Factors