Received: 22 August 2020
Accepted: 7 December 2020
First Online: 6 January 2021
Ethics approval and consent to participate
: Ethical approval was sought and obtained according to local health service processes and university requirements. The investigation proceeded following endorsement from the Northumbria Healthcare NHS Foundation Trust Research and Development Department, and the Newcastle University Medical School Research Management Group. Ethical approval was formally granted by Newcastle University on 5/12/2018, reference number 9372/2018. The work was carried out in accordance with the Declaration of Helsinki - the anonymity of participants was guaranteed and the informed, written, signed consent was obtained from all participants.
: Written consent for the publication of anonymised data and the use anonymous quotes was obtained.
: We have read and understood BMC policy on declaration of competing interests and the authors declare that they have no competing interests.