Received: 12 December 2018
Accepted: 8 August 2019
First Online: 4 September 2019
Ethics approval and consent to participate
: Approval of Research Ethics Committee (REC) of Public Health and Community Medicine department was granted (code S-10-2018). All participants were treated according to Helsinki declaration of biomedical ethics. All responses were kept confidential. Verbal consent was sought from all study participants before participation in the study. Data were collected anonymously. Accordingly, signature of the consent form was waived as it would bear the only identifier to participants identity and interfere with their freely given responses. Request for waiving the signature of the consent form and obtaining verbal consent was approved by REC.
: Not applicable
: The authors declare that they have no competing interests.