Kairaluoma, Valtteri http://orcid.org/0000-0003-2399-3722
Kemi, Niko
Pohjanen, Vesa-Matti
Saarnio, Juha
Helminen, Olli
Funding for this research was provided by:
Suomen Lääketieteen Säätiö
Instrumentariumin Tiedesäätiö
Article History
Received: 4 November 2019
Revised: 16 March 2020
Accepted: 1 April 2020
First Online: 4 May 2020
Ethics approval and consent to participate
: The study was approved by the Oulu University Hospital Ethics Committee and the hospital district (committee’s reference number 81/2008). The need to obtain informed consent from the study patients was waived by the Finnish National Authority for Medicolegal Affairs (VALVIRA, reference number 10832/06.01.03.01/2014). The study was performed in accordance with the declaration of Helsinki.
: Not applicable.
: Anonymised data are available from the corresponding author upon request. Sharing the data will require additional ethical approval.
: The authors declare no competing interests.
: This work was supported by grants from The Finnish Medical Foundation (V.K.) and Georg C. and Mary Ehrnrooth Foundation and Finnish State Research Fund (O.H.).