Funding for this research was provided by:
Agentschap voor Innovatie door Wetenschap en Technologie (131581)
Text and Data Mining valid from 2019-05-20
Received: 30 September 2018
Accepted: 5 May 2019
First Online: 20 May 2019
Ethics approval and consent to participate
: Subjects have given their written informed consent and the study protocol was approved by the local ethical committee (MEC ZOL, reference: 13/090 U).
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.