Received: 9 December 2019
Accepted: 9 March 2020
First Online: 3 April 2020
Ethics approval and consent to participate
: Ethical review board approval was received prior to study commencement (South West – Cornwall & Plymouth Research Ethics Committee, ref. 16/SW/0080). Informed consent for both entry into the trial and the extra imaging required was gained via consultation and a written information pack.
: Although no identifying information is included, all participants consented to the use of their data for publication.
: The authors declare that they have no competing interests.