Adolescent 1 Alcohol Drinking 1 Alcohol Drinking in College 1 Alcohol consequences Alcohol use 1 Article 1 Co-use 1 Female 1 Humans 1 Longitudinal Studies 1 Male 1 Marijuana Use 1 Marijuana use 1 Students 1 United States 1 Universities 1 adolescent 1 adult 1 alcohol consumption 1 breath analysis 1 cannabis use 1 college drinking 1 college student 1 concentration (parameters) 1 controlled study 1 cross-sectional study 1 disease association 1 drinking behavior 1 epidemiology 1 female 1