Received: 9 August 2020
Accepted: 31 October 2020
First Online: 10 March 2021
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of Tarbiat Modares University of Medical Sciences [IR.MODARES.REC.1399.004]. All procedures were in accordance with the ethical standards of the Regional research committee and with the Declaration of Helsinki 1964 and its later amendments. For informed consent, at the top of the online questionnaire page, adequate explanations were provided about the objectives of the study, the anonymity of the questionnaire, and the confidentiality of the information given. Then the research sample could answer the questions by clicking on the word "I accept" if they wanted to participate in the study.
: Not applicable.
: The authors declare no competing interest.