Orexins contribute to restraint stress-induced cocaine relapse by endocannabinoid-mediated disinhibition of dopaminergic neurons oleh Li-Wei Tung, Guan-Ling Lu, Yen-Hsien Lee, Lung Yu, Hsin-Jung Lee, Emma Leishman, Heather Bradshaw, Ling-Ling Hwang, Ming-Shiu Hung, Ken Mackie, Andreas Zimmer, Lih-Chu Chiou