Text and Data Mining valid from 2019-07-25
Received: 13 March 2019
Accepted: 18 July 2019
First Online: 25 July 2019
Ethics approval and consent to participate
: Ethical approval was obtained for this study from the Medical Ethics Council of the Amsterdam Medical Centre, reference number: METC 2014_413. Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.