Received: 18 April 2020
Accepted: 2 June 2020
First Online: 10 June 2020
Ethics approval and consent to participate
: The study was approved by Kaunas Regional Committee of Bioethics (BE-2-7, 26-01-2016), and authorised by Regional Education Authorities. Consent was obtained prior to inclusion from each participating child or adolescent, along with signed parental consent.
: Not applicable.
: TJS is a Director and Trustee of <i>Lifting The Burden</i>. Otherwise, no author declares a conflict of interest.