Kuitunen, Ilari http://orcid.org/0000-0001-8178-9610
Funding for this research was provided by:
University of Eastern Finland (UEF) including Kuopio University Hospital
Article History
Received: 3 June 2021
Accepted: 9 June 2021
First Online: 18 June 2021
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. Institutional permission was obtained from the participating hospital.
: According to Finnish research laws, informed consent is not required when routinely collected data is handled retrospectively, and the participants are not contacted.
: The author declares no competing interests.