title: Left bundle branch block characterization depending on the frontal and horizontal QRS axes, and global and individual leads QRS duration: is it useful for cardiac resynchronization therapy patient stratification?
authors: John E
authors: JE
authors: Madias
mesh_terms: D058406:Cardiac Resynchronization Therapy / Q000706:statistics & numerical data*; D019317:Evidence-Based Medicine; D020022:Genetic Predisposition to Disease / Q000453:epidemiology*; D006331:Heart Diseases / Q000235:genetics* / Q000517:prevention & control*; D006801:Humans; D018579:Patient Selection