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Authors
Schückher, Fides https://orcid.org/0000-0002-2036-6371
Sellin, Tabita
Engström, Ingemar
Berglund, Kristina
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Article History
Received: 7 August 2019
Accepted: 25 November 2019
First Online: 12 December 2019
Ethics approval and consent to participate
: The study was approved by the Regional Ethical Review Board of Uppsala, Sweden (Dnr 2012/020), and all participants provided written informed consent prior to inclusion.
: Not applicable.
: All authors declare that they have no competing interests.
