Funding for this research was provided by:
National Institute for Health Research
Text and Data Mining valid from 2019-03-25
Received: 24 July 2018
Accepted: 14 March 2019
First Online: 25 March 2019
Ethics approval and consent to participate
: An ethics application received favourable opinion from the London School of Hygiene and Tropical Medicine (LSHTM) Ethics Committee (reference 10,429) and the NHS Integrated Research Application System (IRAS), (reference 15/LO/2189, IRAS project ID 186948). All participants declared informed consent and signed a consent form before participating in the study. Pseudonyms were assigned to each participant.
: Not applicable.
: The authors declare that they have no competing interests.
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