Thrombotic response of mice to ferric chloride injury of the carotid artery. Flow rates were measured in the carotid artery after exposure to 7% FeCl3 for 2 minutes. The experiment was stopped after 30 minutes. (A) For each genotype, the number of mice forming a stable occlusion is shown in black. The number of mice that formed an unstable or partial occlusion is shown in white. The number of mice that did not form an occlusion is shown in gray. (B) Representative flow traces for each case (stable occlusion, no occlusion, and unstable occlusion).