Conference ProceedingsHydroxycocaine Concentrations in Head and Body Hair as Determined by Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)Presenting section:Toxicology2021Stowe, Neil, Culver City CA; Paulsen, Ryan B., Culver City CA; Hill, Virginia, Culver City CA; Schaffer, Michael I., Culver City CAView the paperToxicology