Received: 18 September 2019
Accepted: 22 July 2020
First Online: 29 July 2020
Ethics approval and consent to participate
: The oresent study was conducted in accordance with the recommendations of ethical guidelines, IR.SUMS.REC.1394.S1206. The research protocol was approved by Shiraz University of Medical Sciences. All subjects were given written informed consent in accordance with the Declaration of Helsinki. The data used in this study are public and as such this study is exempt from human subject’s review.
: Not applicable.
: The authors declare that they have no competing interests.