Funding for this research was provided by:
Received: 9 June 2020
Accepted: 20 July 2020
First Online: 3 August 2020
Ethics approval and consent to participate
: The study was approved by the NHS Health Research Authority Ethics Board (Trial Identifier: NCT01171625).
: All patients were specifically consented to participate in this study.
: VG and SS are employees of Edwards Lifesciences.