Outside-in signaling drives platelet retraction and vessel sealing. (A) The average platelet area for WT (black) and diYF thrombi (white) (± SEM). (B) Time course (mean ± SEM) and (C) dot plot at 200 seconds postinjury of cAlb extravasation for WT (black) and diYF (white) thrombi (WT n = 24, diYF n = 19).