Major, János http://orcid.org/0000-0002-6375-5756
Ádám, Szilvia
Funding for this research was provided by:
Semmelweis Egyetem
Article History
Received: 7 April 2019
Accepted: 21 May 2020
First Online: 6 June 2020
Ethics approval and consent to participate
: We received ethical approval from the Hungarian National Ethical Committee for this research on 16.12.2015. (No. 59678–1/2015/EKU). A written consent to participate was obtained from all participants and their parents.
: Not applicable.
: The authors declare that they have no competing interests.