Research & Education JFS Articles AAFS Connect Conference Proceedings Reference Series Library International Educational Outreach Program Headspace Sampling and Detection of Cocaine, MDMA, and Marijuana via Volatile Chemical Markers; Solid Phase Microextraction-Ion Mobility Spectrometry Presenting section: Criminalistics 2008 Lai, Hanh, Miami FL; Almirall, Jose R., Miami FL View the paper Criminalistics