In vivo thrombotic and hemostatic responses are altered in the absence of CypD. (A) Tail-transection bleeding time (n = 8). (B,C) Carotid artery thrombosis was induced by photochemical injury, and the times to stable (B) and first occlusion (C) were determined (n = 8). *P < .05 for comparison between CypD^+/+ and CypD^−/− mice. Error bars represent SE.