Fig. 3. The clotting time and the CWA parameters present different aspects of a clotting reaction. The clotting curve parameters were collected from randomly selected blood samples referred for PT and APTT. The CWA parameters (|min1| and |min2|) and the clotting times (PT and APTT) were obtained from each plasma sample and dot-plotted on |min1| vs. PT (A), |min2| vs. PT (B), |min1| vs. APTT (C), and |min2| vs. APTT (D) planes. It is apparent by a simple visual ex-amination that both PT and APTT are poorly correlated with |min1| or |min2|. Samples with the same PT or APTT demonstrated a wide range of |min1| or |min2| values.

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