Ziaei, Reza http://orcid.org/0000-0001-9780-4192
Shahi, Hadi
Dastgiri, Saeed
Mohammadi, Reza
Viitasara, Eija
Funding for this research was provided by:
Tabriz University of Medical Sciences (5/4/8860)
Article History
Received: 4 March 2019
Accepted: 7 May 2019
First Online: 21 May 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Informed consent was obtained from all individual participants included in the study.
: The Ethics Committee of Tabriz University of Medical Sciences granted approval for the study [5/4/7180, 1391/08/10]. One week prior to the survey, consent forms were distributed to all parents of students in the participating classes through the school authorities and these were collected from students on the day of administration. All students were informed about the voluntary and anonymous nature of the study and were told that they could terminate their participation at any time during the survey.All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.