Puolitaival, Tuulia
Sieppi, Mirjam
Pyky, Riitta
Enwald, Heidi
Korpelainen, Raija
Nurkkala, Marjukka
Funding for this research was provided by:
Finnish Ministry of Education and Culture (DNRO 125/627/2009, 98/627/2010, 97/627/2011)
Juho Vainio Foundation (-)
Centre for Military Medicine Finland (-)
Northern Ostrobothnia Hospital District (-)
European Social Fund (project number S11580)
European Regional Development Fund (70037/2010 and 70035/2011)
the Finnish Cultural Foundation (-)
the Finnish Funding Agency for Technology and Innovation (-)
Article History
Received: 23 May 2019
Accepted: 12 March 2020
First Online: 30 March 2020
Ethics approval and consent to participate
: The study was conducted according to the Declaration of Helsinki (2000), and was approved by the Ethical Committee of Northern Ostrobothnia Hospital District (ETTM123/2009). The study participants had the right to refuse to participate or withdraw from the study without any effects on their future health care or military service. Written informed consent was obtained.
: Not applicable.
: The authors declare that they have no competing interests.