Leppänen, Marja H. http://orcid.org/0000-0001-6933-8809
Sääksjärvi, Katri
Vepsäläinen, Henna
Ray, Carola
Hiltunen, Pauliina
Koivusilta, Leena
Erkkola, Maijaliisa
Sajaniemi, Nina
Roos, Eva
Funding for this research was provided by:
Folkhälsan Research Center
Helsingin Yliopisto
Opetus- ja Kulttuuriministeriö
Sosiaali- ja Terveysministeriö
Academy of Finland
Juho Vainion Säätiö
Päivikki ja Sakari Sohlbergin Säätiö
Signe ja Ane Gyllenbergin Säätiö
Article History
Received: 13 January 2020
Revised: 30 April 2020
Accepted: 11 May 2020
First Online: 27 May 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study was approved by the University of Helsinki Ethical Review Board in the Humanities and Social and Behavioral Sciences in February 2015 (#6/2015).
: Guardians gave their written informed consent.