 - To compare the results of other tests of platelet aggregationactivation light transmittance aggregometry in response to ADP and arachidonic acid; flow cytometry measurements of VASP phosphorylation, platelet expression of P-selectin and GPIIbIIIa, and circulating levels of platelet microparticles and leukocyte-platelet aggregates; PFA-100 occlusion time; circulating levels of thromboxane B2 and circulating levels of other markers of atherosclerosis CRPhs, von Willebrand factor, PAI-1, fibrinogen, and soluble CD40L in DM vs. MS vs. no DMMS patients. 