Received: 7 April 2020
Accepted: 11 February 2021
First Online: 19 February 2021
Ethics approval and consent to participate
: The present study was approved by Research Ethics Committee (Ethics Code: IR.UMSU.REC.1397.486). All the participants signed written informed consent for their participation in the study. If the participants were children (under 16 years old), written informed consent was obtained from their parent or guardian. The aim of the study was explained to all the participants. They were assured that the data would be used only for research purposes, and their identity would remain confidential. They were also informed that they could withdraw from the study at any time without any repercussions.
: All the participants gave their written informed consent to publish their direct quotes from interviews.
: The authors (NA, VL, NP, RB) declare that they have no competing interests.