Received: 1 May 2020
Accepted: 8 February 2021
First Online: 17 February 2021
Ethics approval and consent to participate
: The study protocol was approved by the Ethics committee of The Shahid Sadoughi University of Medical Sciences, School of Public Health, Iran, under code: IR.SSU.SPH.REC.1395.45. All patients signed and approved the informed consent. The protocol of this study is also registered with the code of IRCT2017011932026N2.
: Not applicable.
: The authors declare that they have no competing interests.