title: Spontaneous echo contrast in mechanical valve prosthesis.
authors.forename: T O
authors.initials: TO
authors.lastname: Cheng
mesh_terms: D000818:Animals; D004285:Dogs; D017548:Echocardiography, Transesophageal; D004912:Erythrocytes / Q000000981:diagnostic imaging*; D006325:Heart Atria / Q000000981:diagnostic imaging; D006331:Heart Diseases / Q000000981:diagnostic imaging; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D066298:In Vitro Techniques; D013927:Thrombosis / Q000000981:diagnostic imaging* / Q000209:etiology