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2. Congenital isolated pulmonary valve insufficiency;Baba, K.; Tomita, Y.; Yoshikawa, J.; Tanaka, K.; Hirashima, S.; Yoshizumi, M.;Cardiovascular Sound Bulletin,1974
3. The isolated systolic murmur;Barlow, J.B.; Pocock, W.A.;South African Medical Journal,1965
4. Heart disease in Africa with parcula' reference to Southern Africa;A., Bradlow B.; Zion, M.M.; Fleishman, S.J.;American Journal of Cardiology,1964
5. Congenital heart disease in Ugandan children;Caddell, J.L.; Connor, D.H.;British Heart Journal,1966