The Paradox of Platelet Activation and Impaired Function: Platelet-von Willebrand Factor Interactions, and the Etiology of Thrombotic and Hemorrhagic Manifestations in Essential Thrombocythemia and Polycythemia Vera - Michiels, Jan J; Berneman, Zwi; Schroyens, Wilfried; Finazzi, Guido; Budde, Ulrich; van Vliet, Huub H D M (Seminars in Thrombosis and Hemostasis, 2006)