Vincent David, Audrey Matifas, Stéphanie Gavello-Baudy, Laurence Decorte, Brigitte L. Kieffer, and Pierre Cazala. “Brain regional Fos expression elicited by the activation of mu- but not delta-opioid receptors of the ventral tegmental area: evidence for an implication of the ventral thalamus in opiate reward.” Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology, 33, 7, Pp. 1746–1759.