Increased spinal dynorphin levels and phospho-extracellular signal-regulated kinases 1 and 2 and c-Fos immunoreactivity after surgery under remifentanil anesthesia in mice

1. Campillo, A.
2. González-Cuello, A.
3. Cabañero, D.
4. Garcia-Nogales, P.
5. Romero, A.
6. Milanés, M.V.
7. Laorden, M.L.
8. Puig, M.M.