Funding for this research was provided by:
Fonds Wetenschappelijk Onderzoek (166652/1901518N)
Text and Data Mining valid from 2018-09-12
Received: 13 November 2017
Accepted: 5 September 2018
First Online: 12 September 2018
Compliance with Ethical Standards
: The authors declare that they have no conflict of interest.
: This study was approved by the Ethical Committee of the University Hospital of Antwerp (B300201421549). All subjects agreed voluntarily to participate in this study and signed an informed consent.