Fernández Espejo, E.; Stinus, L.; Spampinato, U.; De Deurwaerdère, P.; Caillé, S.; Koob, G. F. Endogenous Serotonin System Does Not Participate in the Withdrawal Opiate, But Its Inhibition by Stimulation 5-HT1A Receptor Increases the Effectiveness of the Clonidine in Rats / El Sistema endógeno De Serotonina No Participa En La Abstinencia opiácea... HAAJ 2003, 3.