Funding for this research was provided by:
Text and Data Mining valid from 2020-04-07
Received: 31 July 2019
Accepted: 13 March 2020
First Online: 7 April 2020
Ethics approval and consent to participate
: The study was approved by the Institutional Review Board of the University of Amsterdam and registered on Clinical Trials Register (ExternalRef removed; NCT01517503). All participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.