Funding for this research was provided by:
EkstraStiftelsen Helse og Rehabilitering (2013/FOM5661)
Received: 9 April 2019
Accepted: 11 September 2019
First Online: 26 October 2019
Change Date: 22 April 2022
Change Type: Correction
Change Details: A Correction to this paper has been published:
Change Details: https://doi.org/10.1186/s12888-022-03776-8
Ethics approval and consent to participate
: The present study is part of a local research project about long-term outcome after group ERP for OCD at Clinic for mental health at Sørlandet Hospital in Norway, for which the Regional Committee for Medical and Health Research Ethics gave their approval in November 2013. All participants gave written informed consent before taking part in the current study.
: Not applicable.
: The authors declare that they have no competing interests.