Zhytnik, Lidiia http://orcid.org/0000-0003-4682-0402
Maasalu, Katre
Reimann, Ene
Märtson, Aare
Kõks, Sulev
Funding for this research was provided by:
Estonian Ministry of Education and Research (IUT20-46)
Article History
Received: 12 June 2020
Accepted: 15 November 2020
First Online: 23 November 2020
Ethics approval and consent to participate
: Informed written consent was collected from all subjects and controls, or their legal representatives, prior to inclusion in the study and collection of their clinical information and biological samples. A written informed consent to participate in the study was also obtained from parents or legal guardians of participants under the age of 16. The study was conducted in accordance with the Helsinki Declaration and authorized by the Ethical Review Committee on Human Research of the University of Tartu (Permit No. 221/M-34).
: A written informed consent for publication was obtained from the participants and parents or legal guardians of any participant under the age of 18. No identifying images or identifying personal details of participants are included in this article.
: The authors declare that they have no competing interests.