Funding for this research was provided by:
World Health Organization (World Health Organization)
Received: 2 February 2022
Accepted: 21 November 2022
First Online: 23 December 2022
: Characteristics of the study were entered into the NHS Health Research Authority decision analysis tool (ExternalRef removed), which indicated that it did not require ethical approval. However, as interviews were conducted with human participants, we followed accepted good practice: at the beginning of each interview as well as in prior email correspondence, interviewees were informed about the remit of the study and the potential for publication of the findings. Informed consent was explicitly sought at the beginning of each interview.
: Not applicable.
: The authors declare that they have no competing interests.