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(a) Microvessel density (MVD; count/mm2) as average number of microvessels in five fields of five tissue sections. (b) Area per vessel (μm2) calculated by dividing total vessel area (measured by Image J) to the number of vessels per field. Values represent mean ± SD, n = 7/group. * p < 0.05, **p < 0.01, ***p < 0.005.
