1. Drinking, cannabis use and driving among Ontario students;Adlaf;CMAJ: Canadian Medical Association journal = journal de l'Association medicale canadienne,2003
2. Berning, A., & Smither, D. D. (2014). Understanding the limitations of drug test information, reporting, and testing practices in fatal crashes. (Traffic Safety Facts Research Note. DOT HS 812 072). Washington, DC, National Highway Traffic Safety Administration.
3. Passengers' decisions to ride with a driver under the influence of either alcohol or cannabis;Cartwright;Journal of Studies on Alcohol and Drugs,2011
4. Carrying passengers as a risk factor for crashes fatal to 16- and 17-year-old drivers;Chen;JAMA,2000
5. Community alcohol outlet density and underage drinking;Chen;Addiction,2010