Funding for this research was provided by:
Tehran University of Medical Sciences and Health Services
Text and Data Mining valid from 2019-09-06
Received: 2 June 2018
Accepted: 26 August 2019
First Online: 6 September 2019
Ethics approval and consent to participate
: This survey was part of a student thesis. Ethical approval and clearance of the research proposal were obtained from "Medical Ethics Committee, Tehran University of Medical Sciences“ with project registration number (IR.TUMS.SPH.REC.1396.3179). In addition to this, verbal consent was also obtained from the local government and community stakeholders at the district level. Respondents were explained about the objectives of the study, the confidentiality of information and their rights before starting the data collection. As this survey was a short observational study and did not involve any intervention, and almost all the participants were adults, therefore, only verbal consent from the participants was taken instead of a written consent.Note: In this study, there were only two minor participants under the age of 16 hence, for them a written consent was obtained from their parents.
: Not applicable.
: The authors declare that they have no competing interests.