VWF and ADAMTS13 plasma levels. VWF and ADAMTS13 plasma levels in controls (●), IS patients (▴), and MI patients (♢). (A) VWF plasma levels. (B) ADAMTS13 plasma levels. (C) VWF plasma levels of controls plotted against ADAMTS13 plasma levels. No significant correlation between VWF and ADAMTS13 Ag levels was observed (r = 0.07 by Pearson correlation coefficient). CTRL indicates controls.