title: Cardiac resynchronization therapy: forget QRS duration but do not forget QRS morphology.
authors: Wojciech
authors: W
authors: Zareba
mesh_terms: D058406:Cardiac Resynchronization Therapy / Q000706:statistics & numerical data*; D004562:Electrocardiography / Q000706:statistics & numerical data*; D006333:Heart Failure / Q000175:diagnosis* / Q000517:prevention & control*; D006801:Humans; D018487:Ventricular Dysfunction, Left / Q000175:diagnosis* / Q000517:prevention & control*