Early postoperative obstructive prosthetic mitral valve thrombosis in a patient double heterozygous for factor V Leiden and prothrombin G20210A mutation - De Paulis, Stefano; Rossi, Elena; Zamparelli, Roberto; Scapigliati, Andrea; Corrado, Michele; De Stefano, Valerio (Thrombosis and Haemostasis, 2008)