Jafari, Alireza
Mahdizadeh, Mehrsadat
Peyman, Nooshin
Gholian-Aval, Mahdi
Tehrani, Hadi
Article History
Received: 8 August 2021
Accepted: 1 February 2022
First Online: 11 February 2022
Declarations
:
: This study is based on a research project approved by Ethics Committee of Mashhad University of Medical Sciences with code of ethics IR.MUMS.REC.1398.153. Before the study informed consent to participate in the study was obtained from the appropriate parents/legal guardians all students that took part in the study. All procedures performed in this study 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.
: Not applicable.
: The authors have no conflicts of interest.