Straiton, Melanie
Hollander, Anna-Clara
Hynek, Kamila Angelika
Liefbroer, Aart C.
Hauge, Lars Johan
Article History
Received: 2 August 2021
Accepted: 10 March 2022
First Online: 21 March 2022
Declarations
:
: Consent to participate was not required since this study uses already existing administrative data. consent to participate was waived by Regional Committee for Medical and Health Research Ethics, South East Norway (REK 2014/1970).The authors assert that all procedures contributing to this work comply with the ethical standards of the relevant national and institutional committees on human experimentation and with the Helsinki Declaration of 1975, as revised in 2008. Ethical approval for this study was granted by the Regional Committee for Medical and Health Research Ethics, South East Norway (REK 2014/1970) and registry owners approved the use of their data.
: Consent to publish was not required since this study uses already existing administrative data.
: The authors declare that they have no competing interests.