title: [CONSIDERATIONS ON BLOCKING AND UNBLOCKING THE LEFT BRANCH OF THE BUNDLE OF HIS; APROPOS OF FOUR CASES].
mesh_terms: D002036:Bundle of His; D002037:Bundle-Branch Block; D000075224:Cardiac Conduction System Disease; D004562:Electrocardiography; D006327:Heart Block; D006329:Heart Conduction System; D006801:Humans; D010827:Physiology
keywords: BUNDLE-BRANCH BLOCK; ELECTROCARDIOGRAPHY; HEART CONDUCTION SYSTEM; PHYSIOLOGY
vernacular_title: CONSIDERACIONES SOBRE BLOQUEO Y DESBLOQUEO DE LA RAMA IZQUIERDA DEL HAZ DE HIS; A PROP'OSITO DE CUATRO CASOS.