Dr. Alexander Sokolovsky published a paper in Drug and Alcohol Dependence titled, "Alcohol and marijuana co-use: Consequences, subjective intoxication, and the operationalization of simultaneous use." This paper examines day-level risks of alcohol and marijuana co-use versus single substance use and explores whether different approaches to defining "simultaneous" versus "concurrent" result in additional risk.

Dr. Sokolovsky also published another paper titled, "Alcohol and marijuana co-use: Consequences, subjective intoxication, and the operationalization of simultaneous use" in the journal Drug and Alcohol Dependence. This paper examined the daily consequences of using alcohol and marijuana together versus either substance alone and explored different approaches to defining their simultaneous use.