Correction to: Subst Abuse Treat Prev Policy 16, 24 (2021)

https://doi.org/10.1186/s13011-021-00363-0

In the original publication [1], the following affiliation was missing for Trond Nordfjærn

  • 4 St. Olavs Hospital, Clinic of Substance Use and Addiction Medicine, Trondheim, Norway

The original article has been updated.