Received: 7 September 2019
Accepted: 7 May 2020
First Online: 19 May 2020
Ethics approval and consent to participate
: This paper was derived from a PhD thesis and was approved by the Ethics Committee of Kerman University of Medical Sciences, Iran. All participants provided written informed consent. Based on the ethics fundamental regulations in medical science research in Iran, informed consent should be obtained only from the participants if they are 15 years old or over. Thus, in this study, written informed consent was obtained only from the participants.
: Not applicable.
: The authors declare that they have no competing interests<b>.</b>