Funding for this research was provided by:
University of Eastern Finland (UEF) including Kuopio University Hospital
Article History
Received: 1 September 2021
Revised: 1 September 2021
Accepted: 22 January 2022
First Online: 31 January 2022
Declarations
:
: Ethical approval was not required according to Finnish research laws. The ethical committees have waived ethical evaluation on all retrospective register-based studies in which the participants are not contacted.
: According to Finnish research laws informed consent is not required when routinely collected data is handled retrospectively and the participants are not contacted.
: According to Finnish research laws informed consent is not required when routinely collected data is handled retrospectively and the participants are not contacted.
: The authors declare no competing interests.