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. 1999 May 15;19(10):4169–4179. doi: 10.1523/JNEUROSCI.19-10-04169.1999

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Copyright © 1999 Society for Neuroscience

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Fig. 4. — Fos-like immunoreactive cells in the lumbar dorsal horn (L4–5) after hindpaw formalin testing in rats injected with GBR-12935 in the ipsilateral RAIC. A, Rat injected off-site exhibiting no antinociception. B, Rat injected on-site and exhibiting antinociception. In the spinal cord of the on-site-injected rat, there is markedly less stimulus-induced expression of c-fos compared with the off-site-injected rat (p < 0.05). Laminae I–VI of the dorsal horn are indicated in A. Scale bar, 150 μm.