Received: 28 September 2020
Accepted: 27 March 2021
First Online: 3 April 2021
: Ethical approval was granted by the London School of Hygiene and Tropical Medicine’s Research Ethics Committee (reference numbers 7746 and 9945). Participants in semi-structured interviews were required to provide written informed consent prior to the start of the interview.
: Not applicable.
: The authors have previously received GCC funding, either through the MHIN innovator support platform (GKR, GME, JE, MDS, OQ, TE) or through a GCC grant for a project included in this dataset (JM, OQ, SP).