Essebag, Vidal Incidence, predictors, and procedural results of upgrade to resynchronization therapy: the RAFT upgrade substudy. [electronic resource] - Circulation. Arrhythmia and electrophysiology Feb 2015 - 152-8 p. digital Publication Type: Journal Article; Multicenter Study; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 1941-3084 Standard No.: 10.1161/CIRCEP.114.001997 doi Subjects--Topical Terms: AgedCardiac Resynchronization Therapy--adverse effectsCardiac Resynchronization Therapy DevicesDefibrillators, ImplantableElectric Countershock--instrumentationFemaleHeart Failure--diagnosisHumansMaleMiddle AgedPatient PreferencePatient SelectionRisk FactorsTime FactorsTreatment OutcomeUnited StatesVentricular Dysfunction, Left--diagnosis