Nurkkala, Juho http://orcid.org/0000-0003-4053-8078
Lahtinen, Sanna
Ylimartimo, Aura
Kaakinen, Timo
Vakkala, Merja
Koskela, Marjo
Liisanantti, Janne
Funding for this research was provided by:
University of Oulu including Oulu University Hospital
Article History
Received: 15 January 2021
Accepted: 23 March 2021
First Online: 2 April 2021
Declarations
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The study was approved by the hospital administration (journal number 66/2018).
: Due to the retrospective cohort study design, no informed consent was obtained in accordance with Finnish regulations.
: Due to the retrospective cohort study design, no consent to publish was obtained in accordance with Finnish regulations.