Fig. 2. Box and Whisker plots showing thromboelastography reaction times (R) from tests on blood taken from cardiac surgery patients and healthy volunteers before and after the addition of aprotinin to the blood. Plots show R times using different activators for thromboelastography. C = celite; CA = celite after aprotinin; T = tissue factor; TA = tissue factor after aprotinin; K = kaolin; KA = kaolin after aprotinin. Boxes show median values with interquartile ranges, and whiskers represent the full ranges. *P < 0.01 compared with preaprotinin.