Funding for this research was provided by:
Juho Vainion Säätiö (201810364, 201910358)
Academy of Finland (310831)
Received: 24 June 2019
Accepted: 2 December 2019
First Online: 19 December 2019
Compliance with ethical standards
: The ethics committee of Kuopio University Hospital approved the OSTPRE study and participants provided a written informed consent.
: The authors declare that they have no conflict of interests.