Comparison of the in vivo anticoagulant properties of standard heparin and the highly selective factor Xa inhibitors antistasin and tick anticoagulant peptide (TAP) in a rabbit model of venous thrombosis. - Vlasuk, GP; Ramjit, D; Fujita, T; Dunwiddie, CT; Nutt, EM; Smith, DE; Shebuski, RJ (Thromb Haemost, 1991)