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, Bengt; Barold, S SergePublicationPacing and clinical electrophysiology : PACE, 2008, Vol 31, Issue 5, p525ISSN1540-8159Publication typeReviewDOI10.1111/j.1540-8159.2008.01035.x