Enhanced tyrosine hydroxylase phosphorylation in the nucleus accumbens and nucleus tractus solitarius-A2 cell group after morphine-conditioned place preference

1. González-Cuello, A.
2. Mora, L.
3. Hidalgo, J.M.
4. Meca, N.
5. Lasheras, C.
6. Milanés, M.V.
7. Laorden, M.L.