Research & Education JFS ArticlesAAFS ConnectConference ProceedingsReference Series LibraryInternational Educational Outreach ProgramMeasurement Uncertainty (MU): A Novel Quality Assurance Use in Forensic Toxicology for Internal Proficiency TestingPresenting section:Toxicology2021Schroeder, William M., Winston-Salem NC; Strathmann, Frederick, Horsham PA; Labay, Laura M., Horsham PAView the paperToxicology