Conference ProceedingsBenzodiazepine Effects on Opioid Parent and Parent-to-Metabolite ConcentrationsPresenting section:Toxicology2014Abate, Marie A., Morgantown WV; Fields, Marcia, Morgantown WV; Long, Leann, Morgantown WV; Hu, Lan, Morgantown WV; Kraner, James C., South Charleston WV; Blommel, Matthew L., Morgantown WVView the paperToxicology