Received: 18 July 2018
Accepted: 24 January 2019
First Online: 8 February 2019
Ethics approval and consent to participate
: This study received NHS Research Ethics Committee approval and NHS Health Research Authority approval (Ref: 17/NE/0371).Written and verbal consent to participate in the study was obtained from each participant prior to conducting the focus groups.
: We confirm that we have obtained consent to publish from all focus participants to report anonymised individual patient data from the focus groups.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.