Funding for this research was provided by:
European Regional Development Fund (3.2.1002.11–0002)
Institutional Research Funding (IUT 34–16)
Received: 4 January 2020
Accepted: 22 November 2020
First Online: 10 December 2020
Ethics approval and consent to participate
: Along with the questionnaire a covering letter was sent, which contained information regarding the purpose of the study, how the findings will be used, instructions for filling, and contacts for obtaining additional information. Participation in the survey was voluntary and anonymous. This study was approved by the Ethics Review Committee on Human Research of the University of Tartu, Estonia (226/T-7).
: Not applicable
: The authors declare that they have no competing interests.