Assertion: platelet's surface | /r/CapableOf | affect proteolytic activation of fxi
Facets:
value: in the absence of fxii
type: TEMPORAL
Source sentences:
text: Collagen was thought not only to stimulate platelet activation but also to bind to FXII and activate FXII to stimulate thrombin generation and potentiate the formation of platelet-fibrin thrombi ; however, collagen-treated platelets appear to provide more than simply a surface (e.g., kaolin) that could affect the proteolytic activation of FXI in the absence of FXII.