1. Depressive symptoms, mental wellbeing, and substance use among adolescents before and during the COVID-19 pandemic in Iceland: a longitudinal, population-based study Thorisdottir, Ingibjorg E.; Asgeirsdottir, Bryndis Bjork; Kristjansson, Alfgeir L.; Valdimarsdottir, Heiddis; Jonsdottir Tolgyes, Erla Maria; Sigfusson, Jon; Allegrante, John P.; Sigfusdottir, Inga Dora; Halldorsdottir, Thorhildur 2021 Articles Teenagers--Substance useTeenagers--Mental healthCOVID-19 (Disease)--Social aspectsDepression, Mental
2. Testing risk and protective factor assumptions in the Icelandic model of adolescent substance use prevention Allegrante, John P. 2021 Articles Teenagers--Substance useTeenagers--Substance use--PreventionSubstance abuse--PreventionPublic healthEpidemiology
3. Perceived parental reactions to substance use among adolescent vapers compared with tobacco smokers and non-users in Iceland Kristjansson, Alfgeir L.; Allegrante, John P.; Sigfusdottir, Inga Dora 2018 Articles Teenagers--Substance useTeenagers--Substance use--Psychological aspectsParent and childVapingSmoking