Research & Education JFS Articles AAFS Connect Conference Proceedings Reference Series Library International Educational Outreach Program Detection and Simultaneous Quantitation of ß-Naphyrone and 3,4-Methylenedioxypyrovalerone by Gas Chromatography-Mass Spectrometry Presenting section: Criminalistics 2012 Parada, Gina M., Allentown PA; Brettell, Thomas A., Allentown PA; Dawes, Michelle, Yardley PA View the paper Criminalistics