Ventricular septal defect and pulmonary hypertension; electrocardiographic, spatial vectorcardiographic and cardiac catheterization findings
- PMID: 13508539
- DOI: 10.1016/0002-9149(58)90049-3
Ventricular septal defect and pulmonary hypertension; electrocardiographic, spatial vectorcardiographic and cardiac catheterization findings
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