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American Journal of Preventive Medicine|August 26, 2023
Fentanyl Concentration in Drug Checking Samples and Risk of Overdose Death in Vancouver, CanadaMary Clare Kennedy, Huiru Dong, Samuel Tobias, et al.
Harm Reduction Journal|January 20, 2026
Unintentional benzodiazepine use and frequency of drug checking service utilization: a cross-sectional studyLauren Airth, Trevor Goodyear, Brandon D L Marshall, et al.
BMJ Public Health|February 28, 2025
What impact did the COVID-19 pandemic have on the variability of fentanyl concentrations in the Vancouver, Canada illicit drug supply? An interrupted time-series analysisSamuel Tobias, Cameron J Grant, Richard Laing, et al.
The International Journal on Drug Policy|February 25, 2021
An outbreak of novel psychoactive substance benzodiazepines in the unregulated drug supply: Preliminary results from a community drug checking program using point-of-care and confirmatory methodsMatthew K Laing, Lianping Ti, Allison Marmel, et al.
Drug and Alcohol Dependence|June 17, 2025
Impact of having a regular drug dealer on obtaining drug checking results consistent with expectations during a drug toxicity crisis in a Canadian settingHannah Esopenko, Brandon D L Marshall, Mark Lysyshyn, et al.
Drug and Alcohol Dependence|September 5, 2022
Harm reduction in the hospital: An overdose prevention site (OPS) at a Canadian hospitalSeonaid Nolan, Salpy Kelian, Thomas Kerr, et al.
Drug and Alcohol Dependence|May 22, 2020
Detecting fentanyl using point-of-care drug checking technologies: A validation studyLianping Ti, Samuel Tobias, Mark Lysyshyn, et al.
American Journal of Epidemiology|May 12, 2021
Time-Series Analysis of Fentanyl Concentration in the Unregulated Opioid Drug Supply in a Canadian SettingSamuel Tobias, Cameron J Grant, Richard Laing, et al.
Drug and Alcohol Review|December 23, 2020
Detection of synthetic cannabinoid adulteration in the unregulated drug supply in three Canadian settingsLianping Ti, Samuel Tobias, Nazlee Maghsoudi, et al.
Harm Reduction Journal|December 15, 2020
Factors associated with drug checking service utilization among people who use drugs in a Canadian settingViseth Long, Jaime Arredondo, Lianping Ti, et al.
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