Rossi, P [Echocardiographic study of the Björk-Shiley disc prosthesis (author's transl)]. [electronic resource] - Giornale italiano di cardiologia - 857-69 p. digital Publication Type: English Abstract; Journal Article ISSN: 0046-5968 Subjects--Topical Terms: AdolescentAdultAortic ValveEchocardiographyFemaleHeart Valve ProsthesisHumansMaleMiddle AgedMitral ValveTricuspid Valve