Funding for this research was provided by:
Vetenskapsrådet (2014-02517)
Article History
Received: 23 April 2020
Accepted: 10 August 2020
First Online: 19 August 2020
Compliance with Ethical Standards
:
: None.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.Informed consent was not applicable, as the study was based on anonymised data from registers.The study was approved by the regional ethics boards at Karolinska Institutet and Lund University.The authors are not allowed to share the used data from the data sources being used.