Khoshakhlagh, Amir Hossein http://orcid.org/0000-0002-2265-5054
Khatooni, Elham
Akbarzadeh, Isa
Yazdanirad, Saeid
Sheidaei, Ali
Article History
Received: 23 June 2019
Accepted: 23 December 2019
First Online: 30 December 2019
Ethics approval and consent to participate
: The medical ethics committee of Tehran University of medical sciences approved this study (approval number: IR.TUMS.VCR.REC 35944). In this study, the respondents were obligation-free, and after signing the written informed consent form to participate in the study, they peacefully responded to unnamed questionnaire questions. In order to provide the privacy of the participants, the study was strictly anonymous. Furthermore, in order to provide the confidentiality, participants put their completed questionnaire in a sealed envelope, and a research coordinator collected the envelopes, and the collected envelopes were returned to the researchers for further process.
: Not applicable.
: The authors declare that they have no competing interests.