Wändell, P.
Li, X.
Carlsson, A.C.
Sundquist, J.
Sundquist, K.
Funding for this research was provided by:
Vetenskapsrådet (2014-02517, 2016-01176)
Article History
Received: 11 September 2020
Accepted: 3 December 2020
First Online: 19 January 2021
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.The study was approved by the Regional Ethical Review Board in Lund.
: Informed consent was not applicable, as the study was based on secondary data from registers.
: Not applicable.