Text and Data Mining valid from 2019-11-28
Received: 19 June 2019
Accepted: 9 October 2019
First Online: 28 November 2019
Ethics approval and consent to participate
: The English study received NHS ethical approval. The Italian study was approved by the local ethics committee. All participants provided informed consent to the study.
: Not applicable.
: The authors declare that they have no competing interests.