- R randomization, EPJ electronic patient journal system, CGR computer-generated randomization, J&E form job status and education history form (self developed), EuropASI-E E-section of European Addiction Severity Index, HADS Hospital Anxiety and Depression scale, EQ-5D-5L EuroQoL 5L - health-related quality of life, WSAS Work and Social Adjustment Scale, AA registry Norwegian national employer and employee register