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β-Galactosidase expression in cerebellar granule neurons. Neurons were infected at the time of plating and fixed after 72 hr in culture. Cells infected with AdLacZ were stained with X-gal for the detection of β-galactosidase activity (A, 10 MOI LacZ; B, 50 MOI LacZ). Scale bar, 20 μm.
