Text and Data Mining valid from 2019-10-11
Received: 10 June 2019
Accepted: 21 September 2019
First Online: 11 October 2019
Ethics approval and consent to participate
: Ethical approval by the METC Nijmegen-Arnhem (NL62664.091.17). Consent was obtained from all patients or next of kin.
: Not applicable.
: The authors declare that they have no competing interests.