Funding for this research was provided by:
Medical Research Council (K013351)
French National Research Agency (ANR-19-CE36-0004-01)
Received: 21 September 2020
Accepted: 7 December 2020
First Online: 4 January 2021
Ethics approval and consent to participate
: Participant consent and research ethics approvals are renewed at each contact; the latest approval was by the National Health Service (NHS) London—Harrow Research Ethics Committee, reference number 85/0938. All participants provided written, informed consent.
: Not applicable.
: The authors declare no competing interest.