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Journal of Thoracic and Cardiohas been previously noted in 3 patients (Davachi vascular","volume":"49","author":"Anabtawi, I.N.; Ellison, R.G.","year":"1965","unstructured":"Anabtawi, I. N., and Ellison, R. G. 1965. Congenital stenosing ring of the left atrioventricular canal (supravalvular mitral stenosis). Journal of Thoracic and Cardiohas been previously noted in 3 patients (Davachi vascular Surgery, 49, 994.","journal-title":"Surgery"},{"key":"ref_2","first-page":"708","article-title":"cm below the pulmonary valve, left ventricular blood was preferentially directed into the pulmonary artery rather than the aorta. 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