Funding for this research was provided by:
Leiden University Medical Center
Text and Data Mining valid from 2018-09-24
First Online: 24 September 2018
Compliance with Ethical Standards
: Michiel F. Nijhoff and Eelco J.P. de Koning declare that they have no conflict of interest.
: This article does not contain any studies with human or animal subjects performed by any of the authors.