electrocardiogram: left bundle branch block rSR' or broad notched R wave in leads I and II
electrocardiogram: left bundle branch block rsr' or broad notched r wave in leads i and ii
electrocardiogram: left bundle branch block rSR' or broad notched R wave in leads I and II (procedure)
electrocardiogram: left bundle branch block rsr' or broad notched r wave in leads i and ii (procedure)