title: Long-term effectiveness of cardiac resynchronization therapy: Futile or useful?
authors.forename: Derek V
authors.initials: DV
authors.lastname: Exner
mesh_terms: D017147:Defibrillators, Implantable / Q000009:adverse effects / Q000191:economics; D006333:Heart Failure / Q000628:therapy*; D006801:Humans; D010138:Pacemaker, Artificial / Q000009:adverse effects / Q000191:economics; D016032:Randomized Controlled Trials as Topic