Sobrino, J A Disappearance of right bundle branch block with left anterior hemiblock when associated with a type B pre-excitation syndrome. [electronic resource] - American heart journal Apr 1974 - 497-500 p. digital Publication Type: Case Reports; Journal Article ISSN: 0002-8703 Standard No.: 10.1016/0002-8703(74)90175-6 doi Subjects--Topical Terms: Bundle-Branch Block--complicationsElectrocardiographyHeart Block--complicationsHeart Conduction System--physiopathologyHumansMaleMiddle AgedMitral Valve Stenosis--complicationsWolff-Parkinson-White Syndrome--complications