Effects of diabetes mellitus on platelet reactivity after dual antiplatelet therapy with aspirin and clopidogrel - van Werkum, Jochem W.; Topcu, Yasemin; Postma, Sonja; Kelder, Johannes C.; Hackeng, Christian M.; ten Berg, Jurrien M.; Verheugt, Freek W. A. (Thrombosis and Haemostasis, 2008)