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Authors
Sperling, Cecilie Dyg https://orcid.org/0000-0002-0056-2965
Verdoodt, Freija
Aalborg, Gitte Lerche
Dehlendorff, Christian
Friis, Søren
Kjaer, Susanne K.
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Article History
Received: 4 November 2019
Accepted: 29 January 2021
First Online: 23 February 2021
Compliance with ethical standards
:
: All authors declare explicitly that they have no conflicts of interest.
: No ethical approval is required for this type of observational study in Denmark []. The Danish Data Protection Agency and Statistics Denmark’s Scientific Board approved the study.
