Research & Education JFS Articles AAFS Connect Conference Proceedings Reference Series Library International Educational Outreach Program The Effect of Modifications to the Core Fentanyl Structure on the Observed Product Ion Spectra Presenting section: Criminalistics 2021 Hacker, Alia S., Morgantown WV; Davidson, J. Tyler, Huntsville TX; Jackson, Glen P., Morgantown WV View the paper Criminalistics