1. Pulmonary stenosis;Emmanouilides, G.C.; Baylen, B.G.,1983
2. Aortic stenosis;Friedman, W.F.; Benson, L.N.,1983
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4. The measurement of pulmonic valve area by angiocardiographic and hemodynamic methods;W, Jr, Berman; R, Gross; Z, Marawala; E, Carlsson;Cardiovasc Radiol,1978
5. Hoeks Comparison of three methods;de Knecht; Hopman, Daniels; Stoelinga, Reneman;Invest Radiol,1968