Sex and genetic background influence intravenous oxycodone self-administration in the hybrid rat diversity panel - Duffy, Eamonn P.; Ward, Jonathan O.; Hale, Luanne H.; Brown, Kyle T.; Kwilasz, Andrew J.; Mehrhoff, Erika A.; Saba, Laura M.; Ehringer, Marissa A.; Bachtell, Ryan K. (Frontiers in Psychiatry, 2024)