(Q67260299)
Statements
Computerized orthogonal electrocardiogram: relation of QRS forces to left ventricular ejection fraction (English)
Computerized orthogonal electrocardiogram: Relation of QRS forces to left ventricular ejection fraction (English)
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M. G. Gottwik
A. F. Parisi
J. Askenazi
1 January 1978
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