title: Response to cardiac resynchronization therapy: substrate matters.
authors.affiliation: Division of Cardiology, Department of Medicine, Johns Hopkins University, Baltimore, Maryland 21287, USA.
authors.forename: Matthew
authors.initials: M
authors.lastname: Needleman
authors.forename: Ronald D
authors.initials: RD
authors.lastname: Berger
mesh_terms: D058406:Cardiac Resynchronization Therapy; D002311:Cardiomyopathy, Dilated / Q000150:complications* / Q000401:mortality; D006333:Heart Failure / Q000209:etiology* / Q000401:mortality / Q000628:therapy*; D006801:Humans; D017202:Myocardial Ischemia / Q000150:complications* / Q000401:mortality; D011379:Prognosis; D016896:Treatment Outcome