Homozygous G20210A Transition in the Prothrombin Gene Associated with Severe Venous Thrombotic Disease: Two Cases in a French Family - Zawadzki, Christophe; Gaveriaux, Valérie; Trillot, Nathalie; Bauters, Anne; Watel, Annie; Alhenc-Gelas, Martine; Preudhomme, Claude; Jude, Brigitte (Thrombosis and Haemostasis, 1998)