Received: 17 July 2019
Accepted: 23 August 2019
First Online: 28 August 2019
Ethics approval and consent to participate
: All procedures followed were in accordance with the ethical standards of the Ethical Committee of Tabriz University of Medical Sciences. Informed consent was obtained from all individual participants included in the study (No. IRCT20121224011862N2).
: Not applicable.
: The authors declare that they have no competing interests.