van der Graaf, Rieke
van der Zande, Indira S. E.
den Ruijter, Hester M.
Oudijk, Martijn A.
van Delden, Johannes J. M.
Oude Rengerink, Katrien
Groenwold, Rolf H. H.
Funding for this research was provided by:
ZonMw (113105003)
Article History
Received: 23 July 2017
Accepted: 11 December 2017
First Online: 29 January 2018
Ethics approval and consent to participate
: Not applicable.
: 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.