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Selective expression of Cdc6 in proliferating cell populations within intact mammalian tissues. In situ hybridization of sections of duodenum from an adult mouse by using antisense (A and B) or sense (C and D) probes, transcribed in vitro from Cdc6 cDNA. The boxed areas in A and C are shown at higher magnification in B and D. (Bar = 100 μm.)
