Chia, B L Left bundle branch block and increased transverse:frontal plane QRS voltage ratio in severe left ventricular dysfunction. [electronic resource] - International journal of cardiology Jun 1998 - 65-9 p. digital Publication Type: Journal Article ISSN: 0167-5273 Standard No.: 10.1016/s0167-5273(98)00045-x doi Subjects--Topical Terms: AgedBundle-Branch Block--complicationsElectrocardiographyFemaleHumansMaleMiddle AgedVentricular Dysfunction, Left--complications