Sex-dependent effects of periadolescent exposure to the cannabinoid agonist CP-55,940 on morphine self-administration behaviour and the endogenous opioid system

1. Biscaia, M.
2. Fernández, B.
3. Higuera-Matas, A.
4. Miguéns, M.
5. Viveros, M.-P.
6. García-Lecumberri, C.
7. Ambrosio, E.