Received: 6 May 2020
Accepted: 23 November 2020
First Online: 9 January 2021
Ethics approval and consent to participate
: The study protocol was approved by the Ethics Committee of Tarbiat Modares University (code: D525503). All procedures were in accordance with the ethical standards of the Regional Research Committee and with the Declaration of Helsinki 1964 and it later amendments. After explaining the study’s purposes, written consent and verbal assent were collected from all participants. They were also informed that their participation would be voluntary, confidential, and anonymous, and would have the right to withdraw from the research at any time.
: Not applicable.
: The authors declare no conflict of interest.