Received: 25 February 2020
Accepted: 26 June 2020
First Online: 23 July 2020
Ethics approval and consent to participate
: All participants of this observational study signed consent form approved by the Ethics Committee of Sabzevar University of Medical Sciences (Code of Ethics: IR.MEDSAB.REC.1398.39) before including to study.
: The authors declare that they have no competing interests.