1. Echocardiography;Feigenbaum, H.,1976
2. Echocardiographic evaluation of pulmonary hypertension;Nanda, N.C.; Gramiak, R.; Robinson, T.I.; Shah, P.M.;Circulation,1974
3. Echocardiographic patterns of pulmonic valve motion with pulmonary hypertension;Weyman, A.E.; Dillon, J.C.; Feigenbaum, H.; Chang, S.;Circulation,1974
4. Critical evaluation of the pulmonary valve echocardiogram: usefulness and limitation of E-F slope measurement;Orzan, F.; Krajcer, Z.; Mathur, V.S.; Pechacek, L.W.; Garcia, E.; Hall, R.J.,1979
5. Pulmonary valve echo motion in pulmonary regurgitation;Weyman, A.E.; Dillon, J.C.; Feigenbaum, H.; Chang, S.;Br Heart,1975