Eefting, M
de Wreede, L C
Von dem Borne, P A
Halkes, C J M
Kersting, S
Marijt, E W A
Putter, H
Veelken, H
Schetelig, J
Falkenburg, J H F
Article History
Received: 19 February 2017
Revised: 29 May 2017
Accepted: 10 July 2017
First Online: 2 October 2017
Competing interests
: The authors declare no conflict of interest.