Anti factor Xa activity and antithrombotic activity in rats of structural analogues of the minimum antithrombin III binding sequence: Discovery of compounds with a longer duration of action than of the natural pentasaccharide - Meuleman, DG; Hobbelen, PMJ; van Dinther, TG; Vogel, GMT; Van Boeckel, CAA; Moelker, HCT (Sem Thromb Hemost, 1991)