Funding for this research was provided by:
British Heart Foundation (FS/16/73/32314)
Text and Data Mining valid from 2019-12-01
Received: 9 August 2019
Accepted: 13 November 2019
First Online: 16 December 2019
Ethics approval and consent to participate
: Data was collated and accessed for this retrospective analysis in accordance with the previous studies ethical approvals, see Additional file InternalRef removed: Table S1. Further informed consent was not required as data reviewed was collected as part of clinical care. This is in agreement with the United Kingdom National Research Ethics Service guidance.
: Not applicable.
: The authors declare that they have no competing interests.