Jafari, Alireza
Peyman, Nooshin
Gholian-Aval, Mahdi
Mahdizadeh, Mehrsadat
Tehrani, Hadi
Article History
Received: 26 March 2021
Accepted: 13 September 2021
First Online: 25 September 2021
Declarations
:
: This article research project approved by Ethics Committee of Mashhad University of Medical Sciences with the code of ethics IR.MUMS.REC.1398.153 (Cod: 980103). 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. Written informed consent from by students and their parents was obtained.
: Not applicable.
: The authors declare that they have no competing interests.