Cohort profile: The Swedish Tattoo and Body Modifications Cohort (TABOO).
Christel NielsenKristofer AndréassonH OlssonMalin EngfeldtAnna JöudPublished in: BMJ open (2023)
The register linkage will be renewed every third year to update the outcome data, and we have ethical approval to reapproach the responders with additional questionnaires.