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Phantom 2 (a) mean creep displacement, (b) estimated relative storage moduli, Cs, (c) estimated relative loss moduli, Cl, and (d) loss tangent, tan(δ), of a 1.6 μs (o) and 3.2 μs (*) push duration. Average of 5 repeated measurements over a window of 3 mm in axial direction and 1 mm in lateral direction. The dashed lines represent the standard deviation of 5 repeated measurements.
