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Graph shows comparison of adhesion rates (mean ± SEM) of washed P5k and P2k microbubbles for the flow chamber (FC) and phantom vessel (PV). Buoyancy drives adhesion in the FC experiment, and USRF drives adhesion in the PV experiment. The pulse length of 0.67 sec was used to calculate the adhesion rate for the PV experiment. The asterisk (*) denotes statistical significance (p < .05) between P2k and P5k in the FC experiment.
