RT Journal Article SR Electronic T1 Transoesophageal echocardiography showing a thrombosis of the aortic valve mechanical replacement before and after thrombolytic treatment JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1351 OP 1351 DO 10.1136/hrt.2005.064097 VO 91 IS 10 A1 Jelínek, P A1 Vácha, M A1 Šulda, M YR 2005 UL http://heart.bmj.com/content/91/10/1351.abstract AB