Received: 14 November 2020
Accepted: 3 February 2021
First Online: 17 February 2021
Ethics approval and consent to participate
: This study was approved by the local and regional regulatory ethics committees (London Riverside Research Ethics Committee and Health Research Authority, UK), and the Medicines and Healthcare products Regulatory Agency. All participants signed an Informed Consent Form prior to entry into the study.
: All authors read and approved the final manuscript.
: The other authors have nothing to declare in relation to this manuscript.