TY - RPRT TI - The Role of Orexin-1 Receptor Signaling in Demand for the Opioid Fentanyl AU - Fragale, J. E. AU - Pantazis, C. B. AU - James, M. H. AU - Aston-Jones, G. PY - 2019 DO - 10.1101/533059 UR - https://www.biorxiv.org/content/10.1101/533059v1 ID - 10.1101/533059 ER -