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Transverse sections through the middle of the superior cervical ganglion (SCG) of homozygote (A) and caspase-3 KO (B) littermates at P8. The overall size and organization of the ganglia appear normal in both low-magnification (insets) and high-magnification photomicrographs from KO animals.Arrows indicate some of the SCG neurons; double arrows indicate non-neuronal cells. Scale bars: A, B at full size, 25 μm; insets, 40 μm.
