1. Heart disease in the Hurler and Marfan syndromes;Berenson, G.S.; Geer, J.C.;Archives of Internal Medicine,1963
2. The billowing mitral valve leaflet;Bittar, N.; Sosa, J.A.;Circulation,1968
3. Untersuchungen uber die diagnostischen Schwierigkeiten bei chronischen Veranderungen der Mitralklappe. Beitrage zur pathologischen Anatomie und zur allgemeinen;Bohmig, R.; Kruckeberg, B.;Pathologie,1934
4. Primary abnormalities of the mitral valve in Marfan's syndrome: electrocardiographic findings;Bowers, D.;British Heart Journal,1969
5. Heart disease in old age;Caird, F.I.;Postgraduate Medical Journal,1963