TY - RPRT TI - Opioid withdrawal produces sex-specific effects on fentanyl-vs.-food choice and mesolimbic transcription AU - Townsend, E. A. AU - Kim, R. K. AU - Robinson, H. L. AU - Marsh, S. A. AU - Banks, M. L. AU - Hamilton, P. J. PY - 2021 DO - 10.1101/2021.01.14.426662 UR - https://www.biorxiv.org/content/10.1101/2021.01.14.426662v1 ID - 10.1101/2021.01.14.426662 ER -