Bryant, P. J., Valentine, J. L. (. L. 1., Gutshall, P. L., Gan, O. H. M., & Driscoll, P. (1975). Study of the Detectability of Controlled Substances on Breath (Report No. DOT-HS-801-660). United States. National Highway Traffic Safety Administration. https://doi.org/10.21949/1524884
Bryant, P. J., J. L. (Jimmie Lloyd), 1940- Valentine, P. L. Gutshall, O. H. M. Gan, and P. Driscoll. Study of the Detectability of Controlled Substances on Breath. Report no. DOT-HS-801-660. United States. National Highway Traffic Safety Administration, 1975. https://doi.org/10.21949/1524884.
Bryant, P. J., et al. Study of the Detectability of Controlled Substances on Breath. United States. National Highway Traffic Safety Administration, 1975, Report no. DOT-HS-801-660, ROSA P. https://doi.org/10.21949/1524884.
The University of Missouri used high pressure liquid chromatography plus mass spectrometry for a quantitative analysis of marijuana metabolites in blood and breath. A breath collector was developed for road-side sampling of human breath and subsequent laboratory analysis. The group also detected a previously unreported marijuana metabolite which is present in blood and breath for at least five days after smoking. /Abstract from report summary page/
Bryant, P. J., Valentine, J. L. (. L. 1., Gutshall, P. L., Gan, O. H. M., & Driscoll, P. (1975). Study of the Detectability of Controlled Substances on Breath (Report No. DOT-HS-801-660). United States. National Highway Traffic Safety Administration. https://doi.org/10.21949/1524884
Bryant, P. J., J. L. (Jimmie Lloyd), 1940- Valentine, P. L. Gutshall, O. H. M. Gan, and P. Driscoll. Study of the Detectability of Controlled Substances on Breath. Report no. DOT-HS-801-660. United States. National Highway Traffic Safety Administration, 1975. https://doi.org/10.21949/1524884.
Bryant, P. J., et al. Study of the Detectability of Controlled Substances on Breath. United States. National Highway Traffic Safety Administration, 1975, Report no. DOT-HS-801-660, ROSA P. https://doi.org/10.21949/1524884.
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