Text and Data Mining valid from 2019-07-29
Received: 30 April 2019
Accepted: 16 July 2019
First Online: 29 July 2019
Ethics approval and consent to participate
: This study and its protocol received full ethical approval from the Postgraduate Medical and Dental Education Ethics Committee at Cardiff University, Wales, United Kingdom. All participants gave a written informed consent before being interviewed.
: Not applicable
: The authors declare that they have no competing interests.