Kleppang, Annette Løvheim https://orcid.org/0000-0002-3844-4745
Hartz, Ingeborg
Thurston, Miranda
Hagquist, Curt
Article History
Received: 3 August 2018
Accepted: 23 November 2018
First Online: 12 December 2018
Ethics approval and consent to participate
: Ethical approval was not required because the study used anonymised data.
: Not applicable.
: The authors declare that they have no competing interests.
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