Länsitie, Miia
Kangas, Maarit
Jokelainen, Jari
Venojärvi, Mika
Timonen, Markku
Keinänen-Kiukaanniemi, Sirkka
Korpelainen, Raija
Article History
Received: 5 April 2022
Accepted: 29 August 2022
First Online: 5 September 2022
Declarations
:
: The baseline and follow-up study were approved by the Ethical Committee of the Northern Ostrobothnia Hospital District in Oulu, Finland (EETTMK 33/2001 and EETTMK 12/2013). The participants provided their informed written consent for the study.
: Not applicable.
: The authors declare that they have no competing interests.