Funding for this research was provided by:
Municipally of The Hague
Text and Data Mining valid from 2019-11-27
Received: 23 July 2019
Accepted: 21 October 2019
First Online: 27 November 2019
Ethics approval and consent to participate
: This study was approved by the Medical Ethics Committee of Leiden University Medical Centre (P17.164). Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.