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We study the relationship between the age at operation and prognosis in children with severe pulmonary hyperten-sion (PH) due to ventricular septal defect (VSD). The study consisted of 40 children with severe PH [the ratio of pulmo-noary arterial pressure
We study the relationship between the age at operation and prognosis in children with severe pulmonary hyperten-sion (PH) due to ventricular septal defect (VSD). The study consisted of 40 children with severe PH [the ratio of pulmo-noary arterial pressure