Hypersensitivity to the pentasaccharide fondaparinux in patients with delayed-type heparin allergy - Utikal, Jochen; Peitsch, Wiebke K.; Booken, Dirk; Velten, Florian; Dempfle, Carl-Erik; Goerdt, Sergij; Bayerl, Christiane (Thrombosis and Haemostasis, 2005)