Haug S, et al. - A two-arm, parallel-group, cluster-randomised controlled trial was performed to test the effectiveness of a technology-based integrated smoking cessation and alcohol intervention versus a smoking cessation only intervention in adolescents. It was concluded that the integrated smoking cessation and alcohol intervention showed no benefits over a smoking cessation only intervention, but it could be more effective for the subgroup of adolescent smokers with heavier alcohol use. However, providing a combined smoking cessation and alcohol intervention could be suggested for adolescent smokers with higher-level alcohol consumption.