5Awa S,Linde L M,Oshima M,et al. The significance of late-phaded dart T wave in the electrocardiogram of children[J]. Am Heart J, 1970,80 : 619-628.
6Ishikawa K,Ohnuma H. The significance of a notch in the T wave[J]. Jpn Circ J, 1979,4a ： 539-546.
7Chen W C,Zeng Z R,Wu C F. Linieal significance of biued T waves[J]. Jpn Circ J, 1986,50 : 232-237.
8Marsico F. The electrocardiogram in ventricular septal defect:scalar and vectorial analysis of thirty_two casea [J]. Am Heart J,1955,49:188.
9Witham A C, McDaniel J S. Electrocardiogram,vector- cardiogram and hemodynamics in ventricular septal de- fect[J]. American Heart J, 1970,79(3) : 335-346.
10Garson A J,Bricker J T,McNamara D G. The Science and practical of pediatric cardiology, II Vol. 1 st ED, Philadel-.
