Research & Education JFS Articles AAFS Connect Conference Proceedings Reference Series Library International Educational Outreach Program Measurement Uncertainty (MU): A Novel Quality Assurance Use in Forensic Toxicology for Internal Proficiency Testing Presenting section: Toxicology 2021 Schroeder, William M., Winston-Salem NC; Strathmann, Frederick, Horsham PA; Labay, Laura M., Horsham PA View the paper Toxicology