Esmaeilzadeh, Samad
Farzizadeh, Reza
Kalantari, Hassan-Ali
Mahmoudi, Asghar
Bilehsavar, Omid Yousefi
Mehranpour, Ali
Article History
Received: 21 February 2016
Accepted: 8 September 2016
First Online: 21 September 2016
Compliance with ethical standards
:
: The authors declare no conflict of interest.
: Informed consent was obtained from all individual participants included in the study.
: No funding was received for performing the present study.
: All procedures performed in studies involving human participants were in accordance with the Human Ethics Committee of Ardabil Department of Education and University of Mohaghegh Ardabili and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.