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2. Quantitative realtime cross-sectional echocardiography in the developing normal human fetus and newborn;Sahn, D.J.; Lange, L.W.; Allen, H.D.;Circulation,1980
3. Normal fetal cardiac anatomy-a basis for the echocardiographic detection of abnormalities;Allan, L.D.; Tynan, M.; Campbell, S.; Anderson, R.H.;Prenatal Diagn,1981
4. Prenatal ultrasound diagnosis of congenital heart disease associated with intrauterine growth retardation. A report of 2 cases;Stewart, P.A.; Wladimiroff, J.W.; Essed, C.E.,1983
5. Fetal echocardiography for evaluation of in utero congestive Stewart, Tonge, Wladimiroff cardiac failure; a technique for study of nonimmune fetal hydrops;Kleinman, C.S.; Donnerstein, R.L.; DeVore, G.R.;N Engl J Med,1982