TY - RPRT TI - Regular physical activity reduces the percentage of spinally projecting neurons that express mu-opioid receptors from the RVM AU - Sluka, K. AU - Kolker, S. J. AU - Danielson, J. AU - Rasmussen, L. PY - 2020 DO - 10.1101/2020.04.27.064923 UR - https://www.biorxiv.org/content/10.1101/2020.04.27.064923v1 ID - 10.1101/2020.04.27.064923 ER -