Warren, A E Right bundle branch block: a source of error in the Doppler assessment of right ventricular pressure in patients with a ventricular septal defect. [electronic resource] - The Canadian journal of cardiology Sep 1998 - 1165-7 p. digital Publication Type: Case Reports; Journal Article ISSN: 0828-282X Subjects--Topical Terms: Bundle-Branch Block--diagnostic imagingDiagnostic ErrorsEchocardiography, DopplerFemaleHeart Defects, Congenital--diagnostic imagingHeart Septal Defects, Ventricular--diagnostic imagingHumansInfantVentricular Dysfunction, Left--diagnostic imaging