Received: 20 July 2020
Accepted: 7 August 2020
First Online: 20 August 2020
Ethics approval and consent to participate
: The study was conducted in accordance with the Declaration of the Islamic Azad University, Boroujerd Branch, Boroujerd, Iran, and the protocol was approved by the University Ethics Committee (IR.IAU.B.REC.1398.7.7). All participants were informed about the procedures and signed an informed consent form prior to commencement of the research.
: Not applicable.
: The authors declare that they have no competing interests.