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CFT-UT PAM of the epinephrine-induced vasoconstriction in the mouse ear. (a) Representative PA images of the ear vasculature before and after epinephrine administration. The arrows highlight some microvessels that were constricted after the administration. (b) Quantitative analysis of the total vessel area. Each image took 5 s. The moving average (red line) was performed over 15 consecutive time points.
