Cellular Fn-EDA+ promotes carotid artery thrombosis. Representative microphotographs and corresponding graphs showing quantitative analysis of time to first thrombus formation (A), time to occlusion (B), and thrombus growth (C) in FeCl₃-injured carotid arteries as visualized by upright intravital microscopy. Platelets were labeled with calcein green. White lines delineate the arteries. *P < .05 compared with Fn-EDA^−/− mice. Data are presented as mean ± SEM. N = 9 to 10 mice per group.