Ultrastruc- tural studies of platelet aggregates from human subjects receiving clopidogrel and from a patient with an inherited defect of an ADP-dependent pathway of platelet activation - Humbert, M; Nurden, P; Bihour, C; Pasquet, J-M; Winder, J; Heilmann, E; Savi, P; Herbért, J-M; Kunicki, TJ; Nurden, AT (Arterioscler Thromb Vase Biol, 1996)