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2. Association of right bundle-branch block with left superior or inferior intraventricular block. Its relation to complete heart block and Adams-Stokes syndrome;Kulbertus, H.; Collignon, P.;British Heart3Journal,1969
3. Vectorcardiographic study of the QRS loop in patients with left anterior focal block;Humblet, L.;American Heart J7ournal,1970
4. Lasser, R. P., Haft, J. I., and Friedberg, C. K. (1968).
5. 1969. The significance of pronounced left axis deviation in the presence of right bundle-branch block;Bulletin, Heart; I6, I07 McClInahan; B, J.;California Medicine