Examples of the evolution of the phase angle δ over a range of test frequencies identifying the GP where frequency independence of δ is observed. (A) Anti-FXa concentration of 0.52 U/mL, corresponding to Df = 1.69. (B) Anti-FXa concentration of 0.76 U/mL, resulting in Df = 1.58. Oscillatory shear frequencies are 3.2 Hz (light blue circles); 1.0 Hz (red circles); 0.5 Hz (brown circles); and 0.2 Hz (dark blue circles).