We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleWhen Is It Too Late for Cardiac Resynchronization Therapy?AuthorsHerweg B; Barold SSPublicationPacing & Clinical Electrophysiology, 2008, Vol 31, Issue 5, p525ISSN0147-8389Publication typearticleDOI10.1111/j.1540-8159.2008.01035.x