Depression of intracranial self-stimulation in male and female rats by intraperitoneal lactic acid: effects of morphine, ketoprofen, and interactions with G-protein biased kappa opioid agonists. - Martin, Thomas J.; Martin, Conner W.; Frankowski, Kevin J.; Blough, Bruce E.; Aubé, Jeffrey; Bohn, Laura M.; Jones, Sara R. (Psychopharmacology, 2025)