Viljanen, Anna https://orcid.org/0000-0002-0946-9249
Salminen, Marika
Irjala, Kerttu
Heikkilä, Elisa
Isoaho, Raimo
Kivelä, Sirkka-Liisa
Korhonen, Päivi
Vahlberg, Tero
Viitanen, Matti
Wuorela, Maarit
Löppönen, Minna
Viikari, Laura
Article History
Received: 20 November 2020
Accepted: 26 May 2021
First Online: 10 June 2021
Declarations
:
: The study was conducted according to the guidelines of the Declaration of Helsinki. The Ethics Committee of the Hospital District of Southwest Finland approved the study protocol. Participants provided written informed consent for the study.
: Not applicable.
: The authors declare that they have no competing interests.