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Figure 5 Bar graphs illustrating the effect of arterial injection time on extravasation point creation and fluorescent polymer microsphere delivery to the muscle. (A) Mean gray-scale level above baseline and the number of extravasation points per unit surface area for 10- and 40-s arterial injection durations. (B) Data in part A normalized to the total number of applied ultrasound pulses. *p < 0.05 versus 40-s injection group.
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